I feel for you lonelywolf. WAW is something that I just found out about recently but it is very applicable to my situation as well. Like you, I feel responsible and torn up about "what I should have done." I also spent several weeks sending flowers and e-mails, etc...asking for forgiveness and another chance, when I should have listened to MY mother and left her alone. My situation is no clouded even further by a manipulating OM who bought her a bluetooth and flew her out to be with him. He has basically convinced her that she needs to leave me, when I am now most ready to do the necessary work to make our relationship last. I wish I could tell you how to repair things, but I don't have any answers either. I seem to be learning from my mistakes, and that is a start. All I can tell you is it isn't ALL your fault. It takes two to make a relationship work, even in the hard times, and if you keep working on yourself, hopefully she will notice and come around. If not, then there may have been some irreconceilable differences under the surface that would have sabotaged things eventually. Dont' give up, but don't give in either.
Separated 40 y.o. man who blames himself for his WAW and hopes to reunite and repair relationship and family.