Oooops, i bet that'll put her off drinking forever. Whether she is the sort of person to do that or not, its done now and can never be changed. Do whatever you can but to help, but when its concerning her relationship with her boyfriend, dont get involved as its up to her to talk to him. I hope she's honest with him and i hope he isnt too much of an idiot and realises it was a mistake, it'll be hard for him inevitably.
I dunno if clinics are open, give em a ring!