How long has it been? Maybe it's better just moving on, seeing her and bringing up those emotions won't do either of you any good. If she's done the dirty then you're better off without her anyway.
About 3 months since we split now.
I need closure on it all to be honest, i've not had any. I've always been unsatisfied with her explanations as to why it ended and finding this out makes a lot of things make a lot more sense.
Plus im not even sure she cheated, just that it was to do with someone else.
I have to confront her about it as I need answers and to be honest its more the fact that she lied to my face when I asked her initially when it all happened if it was because of someone else.