I believe it's possible for this M to be saved! I think a lot will be determined in how well you drop the emotional you have tied around her.......and how well she sees you being a strong, confident, man that she has lost.
Wanted to follow up on this. If there is OM and her family is also against him then how will she even recognize any positive changes in him? Even if she does then would she even care? Better yet, would she even care enough to want to return and work on the M? Yes, self improvement is what needs to happen and I agree that he needs to release the emotional attachments he has on her. However, not for the M, but for himself in case she doesn't find her way back.
M: 37 W: 36 T: 16 M: 11 D2: 8,3 PA: 2015 WAW: 2016 W Filed: 2017 2/07/2017 W officially dating OM2