Bin her, and do it now. You’ll be doing her a huge favour, she will be far, far better off without you.
You are the one with the issues, you have an issue with her dad, alcohol, commitment, trust, your parents, relationships and you’re an emotional basket-case.
The mere fact that you came to a internet forum to ask advice points to the fact that you’re seeking validation rather than advice and I strongly suspect that is you who has been trying to find a way out of the relationship for a long time but feel the need to get out of it in such a way that you are completely guilt free.
Any right-minded person would have taken her comments with a pinch of salt and taken her home before she had a chance to make an arse of herself, not you, you let a drunken woman do something stupid and then chastised her for it, which speaks volumes about you. Given that you simply stood by and watched this whole fiasco happen means that you’re are far from exculpable and should really be apologising to her for allowing things to progress so far. Commitment is a two way street and relationships are about both of you supporting each other no matter the circumstances.
You are clearly a delusional fantasist and need to get a clue. You have placed your girlfriend on a pedestal and have clearly been having a relationship with your idealised representation of her rather than the real woman. She is only human and the fact that she was capable of making a mistake really shouldn’t have shattered your opinions of her.
Here are some pointers.
1 Firstly don’t tar her with your alcoholic parents brush.
2 Have a drink, you may learn something about yourself; how self righteous and pompous you are.
3 Don’t ask for advice on the internet from a bunch of computer geeks most of whom are still virgins and have no ******* idea about women.
4 Don’t ask for advice on the internet from a bunch of computer geeks who get off on other people’s misery.
5 Take a good, long, hard look at yourself.
Finally let her read this thread, let her see how much you think of her, let her see how you care so little that you throw your love life out to the internet dogs for scorn and derision. I bet she drops you faster then a whore can drop her knickers.
Your sig says “Jesus loves you”, I believe he also forgives and had a relationship with a whore to boot. If it’s good enough for him.