I've been best friends with this boy for about a year now and we've pretty much known each other our whole lives. After he broke up with his crazy girlfriend of 2 1/2 years we started dating right away. I already loved him because he was so perfectly what I wanted. He was so sweet and nice at first and unfortunately I had sex with him right away. Now he's starting to be really mean and I think he's taking his anger at his ex out on me. He swears that he loves me and he hates her but I know he won't admit if he really does miss her even though I know he does. Should I stay with him and try to work it out or break it off now before I get to hurt?

Uh... hurt how? Physically? Then HELL YES get out, and make sure you tell someone
Just in case he does come after you.

If you mean emotionally, then (thank God) OK, I'll stop freaking out. You're already
Denying having sex with him, that is such a sucky feeling, obviously, he's making
You regret your decision and making you feel awful. Let him know how you feel,
And trust your instincts. A girl deserves to be love whole heartedly, without a
Doubt in her mind. And that kind of love is out there, you just have to have faith.

When you hold on to someone that might isn't right one for you, you might be missing out someone who is.

Yea I meant emotionally and thank you that helps a lot

It seems to me that because you immediately started dating when he broke up with his (now) ex, that there must have been some contact prior to the two of you getting together.

Was there a plan in other words, for the two of you, while he was still with his ex?

It may have been intended differently, but what you are is a rebound, and what he is, is a person who has not given himself any time to recover from one relationship, before jumping into the next. I suspect that he was probably cheating on his ex as well.

His indifference, anger, confusion, and behaviour overall, is not that of a person who is in a position to be in any relationship right now. Going from the frying pan to the fire, only means you're going to get burned.

As hard as this situation is for you, it is a good lesson to be learned. To be involved with someone who just ended one relationship, particularly intimately, is not a good idea.

He may be blaming you for his breakup. He could be having doubts about you, or feeling that he made a decision to jump right into another relationship, before giving himself time to get over the last one.

Talk to him, of course. But try not to put yourself back into the position of 'girlfriend', until you know exactly how he feels, and skip the sex. Give him time to think, without pressure. Get to know him and most of all, realize that you may have to set some boundaries yourself before you jump in with both feet, and get stuck in not knowing the person you think you love.

It will only cause heartache.