I would consider yourself as having had a lucky escape in that you are not married to her with no financial ties.
Why the hell would you want this person back to even consider marriage with when she has already treated you like this?
She wants out, she has told you point blank, so to save yourself from more pain let her have what she wants. Let her go and move on. You are young with a full life ahead of you. There are a million women out there who will treat you a whole lot better than this one has.
Me:40 W:35 D:8 T:13 M:10 WAW: 7/14 PA Discovered: 1/15 at least 6 months Moved out and moved on