Hi Duped1,
I know it's tough. I agree with you that there's a lot of questions after a break-up like this and sometimes the same questions resurface several times. It helps to minimize or cut off contact for self protection. She's not going to put your needs first, she's too self absorbed for that and she'll continue to hurt you.
My ex started an affair, left with him ( we had a young family ) and she approached me a few months later, she said she wanted to become friends, i knew better than that because I'm an end to a means, she wanted an exit plan ( in case her bf abandoned herI) I got really angry, because again she invalidated me by not validating what she out me through, shortly after that conversatiom she got pregnant, and I think it's because she knew she couldn't come and didn't want him to leave.
My point is, you need more time behind you. I can stand to be around her today without getting triggered but it took self work, minimal contact, help from members here and time behind me. I actually feel stronger than before the r/s it's like that for some people. How does self protection sound like to you so that you can look after yourself?