Should I quit after all this or do I keep on hopeing for her to return to our marriage and family?
Doesn't matter. The decision is hers. You can only decide whether to accept her back should she want to come back. Until then, you're on your own whether you "hope" or not. Cover your a$$, be there for your kids, and make time to do things on your own that bring you happiness and a sense of accomplishment. That should keep you busy. After that, you can hope all you want, but you might as well hope for good weather; it'll show up or it won't and there's not much you can do about it.
I know that there is not much I can do right now. I can only keep thinking about moving on right now. I have to think about what I need to do for my son and I. I have started reading DR again. It does give some ray of hope. I am not banking on it though. I will do my best to keep on trying.
