Welcome to SR Bnkszr. This is a great place to find support.
You have done the absolutely right thing. To me leaving an alcoholic is an absolute act of love; you are letting her do what she needs to do and at the same time taking care of yourself. This is not puppy/hallmark/cotton-candy love; it is the real heartbreaking thing . . . I am very impressed with what you have done and who you appear to be.