Your in a tough spot for sure, it's very hard to deal with what has happened. I'm not clear if the GF you picked up is for friendship or more. I know you said you don't do guy friends well.
I'd just suggest you be careful, and if it is actually a GF, what are you doing trying to save your M? It will just complicate things. Have you read DB?
Good luck, and sorry not trying to be harsh, just realistic.
