I know right now it might be hard to believe, but you DO NOT deserve to be punished at all.You made a mistake, but we all make mistakes, and still no one deserves to hurt themselves. I am positive that even though you you hurt her, she still wouldn't want to hurt yourself. Maybe you can talk to her and explain that you were drinking and said some things that weren't true, but that you are really sorry for hurting her.

Some reasons why you shouldn't hurt yourself: no mistake you have made warrants you punishing yourself with SI; you didn't intentionally upset her; hurting yourself won't "fix" anything and make her feel any better.

please be gentle with yourself