I'm so sorry that you're here, but it's a great place to be in our sitch.
This is probably one of the hardest things we'll ever have to do. I know how hard it is when you're still reeling from the shock of the bomb.
The most important thing to remember is that what you do and say now is going to shape her opinions of you and either solidify her reasons for leaving or make her rethink what she's doing. The best thing to do now is to give her space. Do some 180s . . . if you're first thought is to run to her and convince her of all the reasons she needs to be with you than do the opposite. GAL by renewing some old hobbies or doing something that you've always wanted to do. When she's around act as if you understand her need to do this. I know this all seems like nothing you want to do, but it works. The more you do it the easier it'll become. Be sure that you're doing it for self improvement though, she'll see right through it if it's just a ploy to get her back.
Read some other posts around here and see what's working for them. There's some really valuable advice here.
