I get that, and again, not judging. Just basing it on how I personally would roll. I would have ended it and moved on long ago were I in your situation.
Wanted to wait till my Kids were grown and successful in their own right.
From my standpoint, it looks like you were 1/2 successful - the kids are grown.
that's been my biggest Issue, its a weight of my shoulders and why I put up with bull chit for yrs, but guess what her two forty yr old children are still living in my house... f-ck that chit.