What lovely name, although I'm probably biased as that's my name too lol. I unfortunately do not know anything about bulimia, so will not even try to offer support on something I know nothing about, hopefully some other person on here can assis. But I did read yiur message and can emphathise with what your going through, lack of support and feeling overwhelmed.
Alsthough I think if your partner and mother are supportive you should definitely not feel guilty about leaning on them when you need it, so don't be hard on yourself fir doing that. Hopefully you can work throug the arguement that you've had, we all make mistakes, especially when alcohol involved.
As I said I can't offer too much advice, but wanted to say something and not just read and pass by.. take care