I'm in a long-term, sexually active relationship. My boyfriend is very sweet and loves me a lot, and after we have sex he's very loving and cuddly. But, the day after, when I try to talk to him on the phone, or meet up with him, he acts distant and is reluctant to talk or be with me. Is this just guy behavior to want time to themselves after sex, or is it a problem I should try to fix? It's not relationship threatening, but does bother me, especially because i'm on the clingy side after and it's when I need to be with him most.