I don't want to talk to my friend while she's drunk
Is there a reason you don't like talking to her while she is drunk?
I'm afraid she will feel bad about what she's saying.
Not everyone can handle their alcohol so it's understandable that you might be annoyed with their behavior. Have you thought about cutting her off earlier?
I let her have 3 drinks and now I have to deal with it. Next time I know better to not give her so many.
It is good you realize that less than three drinks is enough for her. Drunken people are not the best to deal with. You learn from your mistakes.