When we have been together for two three months, I found that my boyfriend comment on a young girl Facebook pictures, he liked the picture and said "very sexy you look like a model!" Should I take it personally? Am I too sensitive or I am just being a insecure unreasonable girlfriend? As I will never comment on my male friend facebook and said you look so hot.
how young are we talking about? from my experience its likely he spent a lot of time looking through such photo's and has looked at others even if he didn't comment on them. maybe he's just bored or has too much free time but I don't think the comment was approiate to make
--- Women want to feel that you are the only women he sees (regardless of how impossible this is in reality), it's his job to maintain this illusion (guys pretend women love giving blowjobs, even though this is 99% of the time false... we'll pretend this is the reality). Not only would this behavior bug most people, it's also now a public display of him commenting on other girls where your friends and family can see creating an unwanted buzz...
He made a young guy mistake and if he defends himself (which i can see the young guy doing), then give him hell.
Yes, you should take it personally because it's disrespectful, tacky, and embarrassing on your part. Making comments like that is totally unacceptable so don't pretend that it's not upsetting as if it doesn't bother you. It would bother most people. You are not insecure and unreasonable for wanting your significant other to be considerate of your feelings. If he tries to insist that you are, then he's just being manipulative and desperately trying to redirect the spotlight off of himself for being wrong.