Anyway, you know this already, detach yourself. It doesn't matter what she does or who she does it with because you are in the same place that you were when she left.
I hear you in the "it will be better stuff" and guess what, it matters not to a MLCer.
My X has done it all and she is miserable to say the least, I am done and dating and pretty jaded for my experience.
So only you know what is right and good when it comes to that and it will sooner or later.
All I can say is when and if it comes to that hold on to what is right and good, don't fall for the fluff.
Hell you will know this when and if it happens............