Hi Steven venus and welcome to the group

we're glad you felt ready to reach out for some support and feedback.
Needless to say it’s not easy.
Right there with you. I think you've summed it up -- these are
deeply challenging relationships. "Normal" approaches to "normal" relationships often don't help, and can sometimes make things worse.
It's good that you're asking some questions about what might be going when she seems to drop you so quickly and take up again with someone she described to you as abusive.
I'd like to encourage you to check out our
workshop on splitting. There's some really good information and discussion there, and I'd be interested in hearing what you think about it, especially what seems relevant to your situation.
...
How have the last few days gone for you? Any updates?
Fill us in whenever works for you, and again, welcome;
kells76