update - Forgot a few things. She has surrounded herself with friends who are divorced and/or having major troubles. I really believe they are influencing her. Also her C is the one that recommended us to unofficially separate the first time for 8-12 weeks with regular visits to the kids and have a date night once per week. I really believe her C is influencing her also to give up. I am surrounding myself with pro-marriage people (C and minister) and she doesn't want to talk to them???
I have been very weak and stupid by being clingy, upset, pouting, begging, you name it and guess what - it hasn't worked. I am now trying the other extreme now that I am out of the house and that is NC except to see the kids. I just don't know how to handle it.