Why do men become possessive after sex?
I have a friends with benefits and we just had sex a couple days ago, and while my feelings for him have remained the same, he's really changed already- and he's actually become somewhat possessive.
He is referring to me as his, and keeps sending me messages etc...
When the agreement was we only talk once a week...if that.
So men why would you become possessive after sex with a girl?
What's Your Opinion?