Just be there for her. Don't try to fix her. Don't offer advice. Just be there. Even if she doesn't want you around, still check in on her and tell her you were thinking about her. Go to movies, go to her house and watch a movie (she likely will not want to go anywhere.) Just sit there with her. Bring a book or knitting.

Just be there for her. It will help her know she's not going to lose you while she's dealing with losing control of everything else.

At least that's what I wanted in the lowest part of my ED, and still today in the middle of these low points in recovery, I don't want my friends to fix me (I have my therapist and treatment team for that!) I just want them to be there for me.