how old are your kids? do you think he (NOT HER) but HE is a danger to them?
those are the things you need to think about. the other woman- it SUCKS! there is no other word for it....i understand not wanting them to be around her -- does she do things physically/mentally/chemically that would harm your kids?
LET go peace.... let go of him. (and YES I AM TALKING to myself as well!!)
you could always have your kids visit the therapist as well--- that is what i did. and it helped both them and me.
M-20 years/BOMB 12/24/06 Moved out 3/12/07 D final 7/30/2008 finding myself again