I know it's not unheard of to remarry your divorced spouse. I think the low hostility is an advantage. But it would be something she would have to decide to don from what you describe. I read a lot of posts here where the walkaway spouse seems to wake up when the left behind spouse really lets go...
M 16 yrs, WH62, P54 3 adult blended kids EA 11/13, BD1 6/14 PA fall 14, BD2 2/15 Piecing 2015, BD3 12/15 Separated 4/16 WH moved OW in 5/16 Divorced 6/15/17
