So, this is a pretty long story, but to make it *short*;

My boyfriend and I are together for about 5 months now(tomorrow 5 months)
He's my first serious boyfriend, but he's got a lot of ex girlfriends. And not just girlfriends, i'm sure he loved them. And the number is around 12? not to mention all the flicks he had, too.
and with 3 other girls he went further than just kissing. Anyway, it's making me really insecure. Like i'm just the ..?.th girl in his list. I know he loves me alot, but I keep feeling this way.
All the pictures of those girls on his computer Some are really ahem, weird pictures. And his mousemat has a pic of his ex. And his screensaver are legs from two girls... Those kinds of stuff.

He is kind of in a fight with one of his exes, and he says she's so strange and it was a mistake and he blocked her on msn blabla, but (I shouldnt have done this) I layed my eyes on his msn history and saw her email... and i opened it. And well; it felt like he cheated. Not that he said anything wrong or something, but they webcammed and he did quite nice to her. While he said he wouldnt want to talk to her ever again.

I just dont know what to do And I dont know myself this way, normally i'm not the jealous type. But now... I wonder if i'm overreacting? So that's why im asking you guys; How would you feel?

personally... i'd be jealous for sure by now.
you should really talk to him. tell him how sometimes the things he does relating to his exes makes you feel really insecure. you should get the truth from him and tell him that while it was wrong for you to sneak around private emails (you should apologize for that) you dislike how he had to lie to you about it.

maybe you are overreacting... but there's no way anybody but you can tell for sure. just.... first things first, have a long talk with him.

You're not wrong to be jealous. I would be too.

If your boyfriend says that he's over his exes, he shouldn't be having so much contact with them; nor should he still have so many pictures of them. Clearly this doesn't mean he can't be friends with them, but he's acting like he's more than just friends.

Tell him how you've been feeling lately and say that you want to trust him, but that it's hard since he's sneaking around with the MSN thing. Then, as Alysa said, apologize for looking through his MSN history.

Give him a second chance but if he won't stop acting this way, you might want to think about breaking up. =/ You deserve someone who isn't so hung up on his exes.

It doesn't sound like he's the guy you really think he is.
He is obviously not over them.

^^I agree with everyone else.

He doesn't seem serious.