When a man is having sex his testosterone goes up. Immediately after orgasm, his T (testosterone) levels go back to normal. And when a mans testosterone levels decrease, he feels less like a man. He feels the need to pull away and may even lose interest for a while.

Do guys lose feelings after getting intimate?

“Some people may be surprised that both men and women often have negative feelings after sex,” says Fernandes. These feelings stem from a conflict between what we wish for in a sexual encounter and what we actually get from it.