Should I be happy about the fact that my partner has anorexic friends?

My partner is anorexic (made a post a few days ago) and she has a lot of anorexic friends that she talks a lot too, about anorexia but also other things.

They don't encourage each other to get worse, but they also don't encourage recovery. They talk about weightloss, numbers, being skinny and how all of this makes them feel.

My partner knows that I am not happy with this, since it has caused a relapse in her a couple of times, but she doesn't care, since "they are my friends and they understand me"

What do I do? Should I just accept it and let her have those friends? Do you guys think its healthy for her?