you already answer that to your self
be yourself
Confront her. "If you love it set it free, if it returns it was meant to be."
Talk to her about it and let her know she has to stay away from her ex.
Yes.
I think you should talk to your boyfriend and tell him to have a little chat with his ex.
He will stare at his ex instead of you. He will try to flirt with his ex.
shes your ex so why do you care either way, it shows a very insecure person Well I'm still in love with her and I know for a fact she hates her previous ex boyfriend!!
A boyfriend that you had but you broke up with!
well if they really love you they will most likely break up with there boyfriend or girlfriend but if they dont they dont really love you!
Talk to him. That is really all that you can do.
say how much you love her
he says he thinks the world of her