A.) Don't drink.
B.) See A.
Weaver, you've been dry before and you can do it again. I know it's hard work - at least it is for me - but you have the strength to do it. In addition, she is supporting you in her own way -- if she didn't care at all she wouldn't even have told you how hurt she was by your binging. At the end of the day you have to make you sober (I know it's not grammatically correct but you know what I mean), so focus on that and the rest will come.
Good luck, we're all cheering for you!