she says I only want a future with you but I need things to be about us without my DBAG ex bf causing me to play mind games with myself.
Seriously. You're not being "wonderful" you're being walked on. Tell her that when she's clear of him in her head to call you.
What are you going to do, hang around and be her soft place to land until she goes back to the douche that she allows, yes ALLOWS play mind games with herself? It's guys like you that come in here and say why do women like Jerks. Because guys like you are not attractive on a subconcious level. No one wants someone that they can manipulate like she's manipulating you. We want a guy who won't put up with our shit when it's this kind of crap.
Stop framing her as such a prize. She's NO prize if she's got an ex sniffing up her backside and allowing him to do it.
“The willingness to accept responsibility for one’s own life is the source from which self-respect springs.” ~Joan Didion