Hi, DiscoNova. Welcome.
As Carl said, she has a problem with alcohol, which will only get worse over time.
Unless she embraces sobriety, which isn't sounding likely just now..
What do you want your life to look like in 5 years' time?
In a relationship that, by your admission, stresses you out?
Because, if she is bad now, in five years she will be worse.
There is a saying around here: you didn't cause it, you can't control it, and you can't cure it.
It really is up to her to decide she wants to stop drinking.
Have you gone to any Al-Anon meetings? Could be a great source of support.
Good luck.