I was engaged to an alcoholic and it became a total nightmare. His addiction came first, not me. It became a very toxic relationship I had to leave.

You have two choices: either leave and end the relationship or stay.

If you stay, you will be dealing with this possibly for the rest of your life. Alcoholism is a serious disease. It takes over a person's priorities, mindset and life. It is highly destructive. So, if you stay, you will go further downhill with her, as long as she remains the same.

The only way to stay is she would need to admit to her problem, agree to stop drinking and go to AA meetings every day. That is incredibly hard to accomplish when someone is so deeply entrenched in their addiction. And typically, addicts will allow their addiction to win over willpower. You would constantly need to be watching her, making sure she is not drinking.

I suppose you have to choose what kind of life you want to lead from here on out. Do you want to take care of an addict, who is a full blown addict right now, and get her into recovery? How much are you willing to do for her?

She's already behaved badly towards you. If she is also abusing you verbally and cheating on you because of her drinking, my suggestion would be to leave, no matter how hard it is to do.