Just ask her.
...what?
Nope, his ex-girlfriend Hanna Warnes cheated on him.
As a friend.
Move on. If he does not want to talk to you then you can't be friends. An Ex is An Ex for a reason
If it was your ex then he hasn't cheated on you because he is your ex. He cannot dump you because he, or you, have already broken up. What you should do is try to grow up.
If your 'ex' dumped you for an 'ex' that dumped her, chances are she's gonna get dumped again.
Maybe your girlfriend isn't over her ex husband.
sit down and talk to him and see why he cheated. only if that was the first time he cheated but if not call police and tell them what is going on.
No, unless she has asked you not to.
Only if you are sure that you will never talk to your ex girlfriend again.
She obviously doesnt love only you if she cheated on you with her Ex. I;d stop seeing her immediatly, I mean she did cheat on you!