I did something truly horrible to my girlfriend and I don't know if it's repairable. I will never drink again and it's been a huge wake up call to be compliant treating bipolar. What can I do other than remind her everyday how I feel about her and give her the time she needs?
Do you want to take this to PMs? I'm not sure what kind of meaningful advice we could give without having a clearer picture of the situation, but I don't blame you if you don't want to put it out here in the open.
But yes, given her some time and making it clear how much she means to you and that what happened was caused by bipolar and is not how you actually feel about her sounds like a good start.