Hi - we seem to have a lot in common. I've been doing basically the same thing you've been doing, since June 2011. My H did not move out but he otherwise acts much like yours and is occasionally working toward getting a divorce.
You sound good, and like you're doing the right things. You may have no control over him or what happens to your M but you're not making things worse and you're being a great role model for your girls.
This site is great for venting, exploring your emotions, getting all kinds of feedback. I'm glad you're here.
Adinva 51, S20, S18 M24 total 6/15/11-12/1/12 From IDLY to H moving out 9/15/15-3/7/17 From negotiating SA to final D at age 50 5/8/17-now: New relationship with an old friend __ Happiness is a warm puppy.