Why Do I Miss My Boyfriend Right After He Leaves?

Have you ever felt that sinking feeling in your chest when your boyfriend leaves, even if it’s just for a short while?

You’re not alone.

Missing someone you love can be a painful experience, and it’s completely normal to feel that way. Whether you’re in a long-distance relationship or just spending a few days apart, the longing for your partner can range from minor sadness to downright agony.

But have you ever wondered why you feel this way? What’s going on in your brain when you miss someone?

In this article, we’ll explore the science behind missing your boyfriend and why it’s such a common experience.

So, grab a cup of tea and let’s dive in!

Why Do I Miss My Boyfriend Right After He Leaves?

When your boyfriend leaves, you might feel a range of emotions, from sadness to anxiety. But why does this happen?

According to behavioral scientist Clarissa Silva and licensed psychologist Jennifer B. Rhodes, missing your partner is a natural response to being separated from them. When we spend a lot of time with someone, it’s normal to feel sad and miss them when they leave because it feels like a big gap in our lives.

But there’s more to it than just that. Chemical reactions in your brain can trigger major waves of emotion, and as humans, we’re often driven by brain processes we have no idea are occurring on a conscious level.

In fact, a study by neuroscientist Lucy Brown found that the sensation of withdrawal some people feel after a breakup is actually very similar to how it feels to quit a substance like alcohol. So, if your favorite person is away and you’re wondering why you feel totally under the weather, then don’t fret – it’s just your brain doing its thing.

The Science Of Missing Someone

When you miss someone, your brain chemistry changes. The happy hormones dopamine and oxytocin flood your brain when you’re in love, but when your partner leaves, the supply of these feel-good hormones takes a dive. This causes your brain to release stress hormones such as cortisol and epinephrine, which can lead to physical symptoms like headaches, tense muscles, and tummy troubles.

In addition to these physical symptoms, missing someone can also activate the area of your brain that processes craving and addiction. Losing a relationship can throw you into a type of withdrawal, which is why it’s hard to function – you ache for your partner, sometimes literally, and can’t get them out of your head. Like any addiction, this feeling will pass with time.

The length of the relationship also impacts the way our brains process feelings of longing. Those in longer relationships may feel less emotionally shaken by being away from their partner because they have built up emotional security and attachment. However, in newer relationships or during the early stages of dating someone, missing your partner can feel all-consuming because your feelings are rapidly growing for them.


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Scientific studies indicate that romantic love is addictive on purpose – the rush of chemicals encourages us to seek out partners and form social bonds. When that person leaves, our brains have to readjust to being without them, and this can cause intense feelings of sadness and longing. But remember, the pain will eventually diminish as your body chemistry returns to normal. Keep going – you’ll get there.

The Role Of Attachment In Longing

Attachment plays a significant role in why you might miss your boyfriend right after he leaves. Attachment theory suggests that the way we form attachments with our primary caregivers as infants shapes how we form attachments with romantic partners later in life.

If you have a secure attachment style, you likely feel comfortable and secure in your relationship with your partner. However, if you have an anxious attachment style, you might feel more anxious and worried when your partner is away. This attachment style is characterized by a fear of abandonment and a need for constant reassurance.

On the other hand, if you have an avoidant attachment style, you might not feel as strongly about missing your partner. This attachment style is characterized by a fear of intimacy and a tendency to distance oneself emotionally from others.

It’s important to note that attachment styles can change over time and can be influenced by past experiences and relationships. So, if you find yourself missing your boyfriend right after he leaves, it could be helpful to reflect on your attachment style and how it might be influencing your emotions.

The Impact Of Hormones On Emotions

When you’re with your partner, your body produces more oxytocin and vasopressin, two hormones that stimulate the reward center in your brain. These hormones create a feeling of bonding and attachment, making you feel happy and content. However, when your partner leaves, these hormones are produced in lesser quantities, so your body feels like it’s going through a withdrawal, very similar to a drug withdrawal. This can cause you to feel more lethargic and subdued, making you feel the physical symptoms of missing someone you love.


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In addition to oxytocin and vasopressin, cortisol is another hormone that plays a role in how we feel after our partner leaves. Cortisol is often referred to as the “stress hormone” because it’s released during times of stress. When you’re away from your partner, cortisol levels can increase, causing feelings of anxiety and depression. This can also lead to problems such as sleep disturbances.

Studies have shown that separation from a romantic partner can lead to increased anxiety and depression as well as problems such as sleep disturbances. In fact, research on male prairie voles has shown that even short-term separation from their female partners can lead to depression-like behavior and increased levels of corticosterone, the rodent equivalent of cortisol.

Coping Strategies For Dealing With Missing Your Partner

Missing your partner can be tough, but there are ways to cope with the pain and make the distance more bearable. Here are some strategies that can help:

1. Communicate with your partner: The best way to keep your relationship strong is to communicate with each other about your feelings. When you talk, tell your significant other that you miss them. Ask about what your significant other is doing and tell your significant other about your day to feel more connected. Remind your significant other how grateful you are that they are a part of your life.

2. Revisit old memories: Revisit old pictures and messages from the past when you first started dating. This will remind you of some funny exchanges you both might have had. Apart from that, you can just reread everyday conversations in the current text chain between you and him, and it will be as though you are talking to him again, easing some of your heartache.

3. Reclaim your identity: Reclaiming a strong self-concept – establishing who you are outside of the relationship – is critical and will be enormously supportive of a recovery. Think about the parts of yourself that might have been pushed aside during the relationship. When you’ve found these, find ways to build them and nurture them.


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4. Acknowledge and accept your emotions: Ignoring the pain of missing someone might seem like a good way to get rid of it, but avoidance usually has the opposite effect. Emotions are persistent, and the distress you thought you buried can come bubbling back up, at times when you feel unprepared to confront it. There’s nothing wrong with missing someone and feeling sad about your loss. It’s also common to want to escape these feelings. Who wants to experience pain? Of course, you probably don’t want to let your distress take over your day. Instead, find some quiet time where you can investigate your feelings.

5. Use positive self-talk: Encourage yourself with positive self-talk. “This is hard, but it will get better” may have a more positive impact than “They left. Get over it already.” Positive thoughts have three incredible advantages: they are instantaneous, they are easy to implement, and anyone can use them.

6. Focus on the future: Always have in mind the next time you meet. You will have a direction, a goal. You will be motivated and determined in your relationship. For the well-being of your long-distance relationship and to fight against withdrawal, it is vital to have this date in mind.

7. See distance as an opportunity: Think about all the advantages you have due to your partner’s absence, such as the opportunity to travel or time for yourself. Your relationship will be infinitely stronger in the long run if you see the distance as an opportunity.

8. Put things into perspective: Fill your lungs with air, exhale slowly and put it into perspective. Distance is fleeting, and it won’t last forever.

9. Recognize that missing someone is a proof of love: The feeling of lack is a proof of love, so don’t worry when you start missing your partner! Negative feelings can reflect positive thoughts.


Use these easy techniques to “lock-in” a man’s commitment to you, and to make him love you FOREVER!

10. Make departure less painful: After reading topics on the Internet starting with « I miss my long distance boyfriend », I realized that the moment when I missed the other person the most was right after a physical separation. Stop moping around with the negative in the foreground by making departure less painful.

The Importance Of Communication In Long-Distance Relationships

One of the biggest challenges in long-distance relationships is maintaining communication. It’s easy to take for granted the constant presence of your partner when you’re in a physical relationship, but when you’re apart, communication becomes vital. However, it’s important to note that communication should happen organically, not because of a set of rules or obligations.

Forced communication can lead to resentment and uninspired conversations, which can create more problems than they solve. Instead, make all communication optional, meaning that both partners can opt out at any time without taking it personally. However, it’s important to use your partner’s desire for communication as a barometer for how the relationship is proceeding. If your partner is feeling more distant and only wants to talk a few times a week instead of a few times a day, this is worth discussing and being honest about.

In addition to maintaining open and honest communication, it’s also important to value your partner and appreciate the time you have together. Distance can actually teach you the value of your relationship and create a greater appreciation for each other. It’s also helpful to have a goal in mind for when you’ll see each other next and to think about the advantages of being apart, such as the opportunity to travel or time for personal growth.

How To Make The Most Of Your Time Apart

While missing your boyfriend is a natural response to being separated from them, it doesn’t mean you have to feel miserable the entire time they’re gone. Instead, use this time as an opportunity to focus on yourself and your personal growth. Here are some tips on how to make the most of your time apart:

1. Schedule regular phone calls or video chats: If you’re too far away to see each other in person, scheduling a time to talk on the phone or do a video chat can give you something to look forward to. It’s also a chance to connect with each other while you are apart and have a real conversation.


Use these easy techniques to “lock-in” a man’s commitment to you, and to make him love you FOREVER!

2. Prioritize self-care: Take care of yourself by engaging in activities that make you feel good. Whether it’s going for a walk, reading a book, or taking a bubble bath, make sure to prioritize self-care during this time.

3. Journal your thoughts and feelings: Writing down how the break is going and what you’re feeling can help you gain clarity and sum up your thoughts at the end of the separation. It can also help you identify any patterns or behaviors that may be impacting your relationship.

4. Spend time with friends: Enjoy your time with friends without thinking too much about your boyfriend. When you hang out with your friends and have fun, he will miss you by virtue of missing out.

5. Set goals for yourself: Use this time apart as an opportunity to work towards personal goals. Whether it’s learning a new skill, starting a new hobby, or pursuing a passion project, setting goals for yourself can help you feel productive and fulfilled during this time.

Remember, the success or failure of your break is really up to you. Use this time as an opportunity for personal growth and reflection, and if you choose to give it another go with your significant other, you’ll both be stronger for it.