That's a lot of thinking about what she should do.
You don't know what she's feeling really. I would guess she's confused. Maybe she likes the idea of keeping the family together and being with you but has had a taste of freedom from certain constraints and likes that, too.
Back off, continue seeing her WITHOUT EXPECTATION and create new, better memories which will eventually, hopefully, take the place of the old memories.
It takes the LBS a while to see that things really can be different.
Me 57/H 58 M36 S 2.5yrs R 12/13
Let me give up the need to know why things happen as they do. I will never know and constant wondering is constant suffering. Caroline Myss
