This is because men tend to pull away after sex. During sex, oxytocin increases, which has the effect of lowering testosterone. When a man's testosterone levels decrease, he feels a great need to pull away and may even lose interest for a while. As his testosterone levels rebuild, his interest returns.
One of the possible answers to why do guys distance themselves after intimacy is because they are in their refractory period. It is difficult for men to immediately go for subsequent rounds after they ejaculate. They need more time to achieve the same excitement level so that they can adequately satisfy you in bed.
So, do guys lose interest if you sleep with them too soon? No. Okay, there might be some hypocrites out there who judge you for having early sex. Realistically however, a guy sticks around if he's interested enough in you.
Prolactin represses dopamine, a key chemical in desire and motivation, and is linked both with sleepiness and feelings of sexual satisfaction. It's thus a de-arouser of sorts, and temporarily decreases men's desire for sex.
“If he wants to spend the night, that is actually a very good sign. Obviously, this is assuming you have slept together–but if he stays over, it means he likes you. He likes spending time with you and doesn't want the night to end. This could be a sign that he wants to see you again—and soon!”
Your boyfriend won't feel a difference sexually.
No matter how many other people you've been with, your anatomy won't change. There is no way to tell that someone had sex with another person purely through how sex feels with them.
One of the clear signs he's tired of you is when you notice that he thinks more about himself and rarely brings you into the equation. Most times, he will only bring you in when he feels like everything has been sorted out. So on his priority list, you would probably be at the bottom.
Sometimes after sex, they may become insecure or just highly curious and start wondering whether they were big for you or not. If they come right out and ask, then obviously it's on their mind. But even if they don't, there's a good chance this could be what they're thinking of.
Something in his life has changed.
This can happen to your guy too. Maybe he's decided he wants to travel for a while. Maybe he has a new job opportunity that will either take him away or take up too much time. These life events happen and they don't always work with someone else in tow.
The demands of raising children, a health or medical issue, lack of an emotional connection, resentment, communication issues, changes in lifestyle, pornography, having an affair, and work stress can all contribute to a change in sexual intimacy.
A recent survey of 1,000 18- to 35-year-old women found that over 83 percent felt that men will lose interest and respect if you hook up with them too soon. But 70 percent of men said that's not true – if they're interested, it doesn't matter. Getting naked won't affect if he calls the next day.
If a guy likes you and not just wants to sleep with you, he will put your needs first. He might wait until you are ready to have sex or even wait until you've established trust. He might make an effort to understand your needs and make them a priority.
If he's affectionate, pays attention to you, and puts effort into the relationship, you might be overthinking the situation. If he frequently cancels plans with no explanation or apology, ignores you, and doesn't initiate conversations, he might be losing interest.
“It's the same with sex and the classic chase - many men find the chase exciting and it strikes their ego to feel they're the one who is finally going to get her attention - and into bed. Add to this the fact that men are very goal focused and an elusive goal can seem all that much more interesting.
If your partner no longer initiates contact with you, doesn't pay attention, avoids planning the future with you, only meets up for sex, and so on, these could be signs he is not into you anymore. It's painful to realize that the guy you love isn't interested in you, but it's time to move on.
When you're looking for signs he thinks about you a lot even if he tries to hide it then look at the kinds of questions he asks you. A guy who's got you on his mind will be intensely interested in what makes you tick. He wants to know what motivates you, and why you do what you do.
He'll wonder if you miss him at all.
He might even go so far as to think you're already seeing someone else if he can't get in touch or see you on social media. This is a very uncomfortable time for him. He's struggling to understand why you're not responding to his texts, or what you might be feeling in return.
It is quite literally within our nature to catch feelings if we're being intimate with people. Vowels also notes that if you sleep with the same person frequently, you'll likely “associate that release of oxytocin and the feelings it brings with that person”.
Reminder: Sex, including casual sex, causes the brain to release oxytocin, which makes you feel more emotionally tied to the other person(s).
It really all depends on the person. Sleeping with them could potentially make things worse. You can definitely remain friends if you are both mature adults and want that. Usually one person wants to be friends because they see it as a chance to eventually get back together.
Manipulative behavior is a major red flag in men because it implies that they are trying to control you. Manipulation typically involves someone exploiting someone else's feelings or insecurities to get what they want. They might do this by making someone feel guilty or ashamed.