My advice: forget about what he's doing with his life and concentrate on getting yours to a place where you'll be happy. Learn to be happy and secure on your own and take each day as a new lesson and experience as you advance towards your goals - just don't expect your life to change to amazing overnight - adjustments like this take time but you'll reap the long term rewards. Go out, relax, have fun and concentrate on yourself and kids and forget about him.
Good luck with your future as a free individual and keep us informed of your progress.