Tree:

Detach from worrying/thinking about what they think about you. Your task is to do what is necessary to take care of yourself. Your W has made her decision,for her own reasons. It's her reality; it's how she perceives the situation and she will do what she's going to to do. You don't like that, but the sad reality is that there's probably nothing you can do to change it. Accept the present moment and keep working on yourself. Resist the urge to be mean spirited, spiteful, or vengeful. Come through this a stronger, wiser person about your failures in the past and a resolution to think, be, and do different in the future. Measure your progress not by where you were in the past, but where you are headed now. It hurts so much, I know. Keep moving forward one step, even a small step, at a time as best you can by relying on your inner strength and the support of others.