I'm not even sure what to say. I wish I was there so I could just hug you in person! I hope you feel better for telling someone, it is part of the healing process. I also hope you will now feel comfortable telling a close friend who can physically be there for you too. I agree with Kassie, you will find that she will be extremely sympathetic.
I understand why you question whether you want to go back to your M. Certainly you should not settle for the same type of R, you should know that you will never be treated like that again. You are such a wonderful person and deserve nothing less than the best!
If you love somebody, set them free. http://tinyurl.com/2empx2g