What Hammer said.
I feel that she has a problem with alcohol and needs to seek help and stop. However, she stands by the fact that she doesn't and says that she just likes drinking wine.
She's not ready and no matter how much your urge her to do what's right for her, she's not going to. In fact, she will go all out and get worse. You are about to step on her Demon and she will get fierce on you.
Please, take care of you. If you can't see yourself dealing with this next year, 5 years, 10 years from now... you'll should consider your options. You do not have to act this very minute. Take your time, soak it in and go to Al Anon.