It would make sense only if your drinking contributed to her abuse.
It did, directly.
Had I been sober, I would have followed the correct path of calling the police instead of letting her get raped again.
I don't generally do regret but that was a special case.
My usual, "Oh fuck it, it'll be OK" doesn't work in this case.
How do you know she was being raped? It may have been consensual. Was she old enough to agree to have sex with her boyfriend? Would you complain if she was?