Hi Jack - sorry you are going through this. I am in a similar situation (divorced almost a yr, separated 2+, ex-w in MLC living w/affair partner - very sad). I miss her and hope for reconciliation as I find it hard to believe this is the best alternative and God's will.
Regarding reconciliation, I have read that people do remarry. Depending on the source, it seems between 8-18% of divorces end up remarried.
Me: 48 Ex-W: 45 M: Nov '96, together since Oct 93 Bomb: on 10-yr anni - Nov '06 OM Separated: mid-Feb '07 Divorced mid-July '08 One daughter - 28 XW living w/OM