I have some friends who supported me through Weight Watchers, Atkins, and other diets. They didn't have weight issues. In fact, they were runners and gym rats. So they wanted to support me. However, when I told them I was getting banded they ALL told me not to. I felt like they all got together at one point to do an intervention to tell me all the reasons why they thought I shouldn't do it. I have support in other people in my life and I think if she's been your friend for a long time she will come around. If for some reason she doesn't, as hard as it may be, you definitely don't want negativity while you're going through your journey. Best of luck to you!!