Is it mean of me?, to secretly hate her? Options

[pinacoolada]

So I like this guy.
And since I like him, I started talking to him.
It went pretty well..we talked a lot, flirted a lot, and talked on the phone a lot. It was pretty awesome since we've just known each other for about a month.

But here's the catch.
His ex-gf (now gf again), is his best friend. They both still like each other and she started being mean to me. Then this week, I found out that they are going out again. And just like that, our connection suddenly was handicapped. Now..it's really awkward when we talk..etc. etc.

I hate her...because the fact that she didn't give me a shot at it when she had 2 tries with him before just seems selfish to me, although in reality, she's just following what she feels.
Maybe I'm jealous..I don't know. But now that he stopped initiating conversations, saying hi and all that crap, what do I do? Do I back off? Try to forget him? Or just wait since they've broken up twice before and it can happen again...?

Help?

[tokyo-rose]

It's only natural for you to hate the person that you feel "took away" your guy even though you never actually went out. I felt that way too. But you really should move on and leave them alone. You don't have to end your friendship with him, but don't flirt anymore.