When I got sober it was easier to be on my own (with my kids). I kicked my addicted BF out and focused on me. Meaning, I was at peace. I didn't have to answer to anyone. The time on my own was the best thing I could have done for myself. EVER. Respect her choices. If it's meant to be it will be.
Maybe therapy for yourself? That may be the best choice. Hope you get some closure... answers in the therapy session.
You may regret not going a few months down the line.
Good luck.