Sounds like you are really dealing with this well... taking his words to heart and using them constructively. I love that you have a mentor. I envy that.
Ignore what your family is telling you, if that's what you want. If you want your M, keep working on this. It's understandable...they hate to see you hurting.
Even if you don't want your marriage, keep working on this. You'll want a civil R with the father of your children, and let's face it, DBing is all about working on yourself anyway.
Speaking of which, how's the tattoo? Still itching, or are you past that stage yet?