Hi.
Like most girls, I struggle to feel good about myself, and learn how to be positive about myself.

I have a wonderful boyfriend (we've been together for 7 months now), and I couldn't be any happier.
But there's a really big issue.
Whenever there's a girl on TV/in a movie or on the street, my boyfriend comments/yells that she's cute or hot. It happened just yesterday, and I thought: "Hey, what's wrong with ME? Am I too fat compared to her or something?" What he does makes me really jealous and angry. I hissed at him and stopped talking to him for several hours, giving him the "silent treatment" until he cried and said sorry. Then I started to feel bad.
This happens very often, and I'm starting to feel like I have to do something.

Is it wrong of me to do this? Am I being overly jealous and unfair? Or is there a GOOD reason why he's doing this?
Please, help