I agree, you need to do what is in your heart. Dig deep down inside yourself. Ask yourself what is it that is truly going to make you happy?
IMO, this has been such a long and painful journey for you I would hate to see you not give your M another shot, but if you decide not to I would understand.
Your a great person, given me so much advice and I love ya honey
Take care of yourself. I have all the faith in the world that you will do the right thing. You have come a long way and grown so much.