with drac.
Sounds like you and her ex are opposites, You are the nice guy, all together, very nice, not a train wreck.
He is the wild boy, train wreck, the "fun loose cannon type".
I think she needs counseling first of all. But I also think you need to be a bit "looser, wilder" for her. She may feel you are too good for her and that is why she resents you.
She will be back in due time, seems her ex is being decent and not trying to take advantage of the situation, maybe you need to talk to him and see what is going on.
Sounds like she needs professional help.