I'm so sorry. Depression sucks. And it's so hard to not feel isolated no matter what the situation, but especially when something like this happens. My heart goes out to you, and I hope time will heal your friendship with this person. Depression is so difficult because it doesn't necessarily have the physical, visual manifestation that other illnesses have so it's hard for people to really get it. Give her time, and hopefully she'll see that this wasn't any different than other illnesses, that it was an illness you couldn't control, and you still love her and want her to love you. She's hurting now too, but hopefully she'll come around and see that despite what's happened and despite your depression, you are the same person you've always been and that's what made you friends in the first place. I hope she recognizes that, and recognizes the value of what you two still have.