Oh Trinity, my heart goes out to you, and I am so sorry you are being faced with this terribly difficult situation. I know those feelings of being torn in two different directions. Have you talked with her much about her drinking since she has been living with you?? have you discussed the wedding with her (what you expect of her)?? How much longer will she be living with you now, or is there a date? I know you feel like you can't kick her out...but she knows that she is slowly killing herself with the alcohol, and hasn't shown any appreciation to you for trying to support her in that....so I am not sure that even if you provide all the support she needs right now, how receptive she actually will be to that...what do you think?