Attention Seeking?

How do you deal with an attention seeker and give them help? I hang out with a group of about 15 people (I'm a senior in high school), and there is this one girl who is always attention seeking and being dramatic. For example, last year she refused to eat. Now let me say, I don't doubt that she had an eating issue, but she was not quiet about it. She would go around and tell all of our friends how she didn't eat breakfast, or how she only ate cereal the day before. Some friends intervened and started to try and give her food, and when that didn't work they told her parents( both her parents are at home a lot, and she has a good home life). I have known people who have an eating disorder, and they are quiet about it, whereas she would be super loud about it and make comments like "Oh I didn't eat today" constantly. After the whole eating thing was over, she would constantly stir up drama between different people (like starting rumors, playing the he/she said game etc). Earlier this year she went through a period of depression, but same thing, she was super attention seeking about it. She would always mope around, and cry and complain about how sad she was. The thing is, probably half of my friends, myself included, suffer from depression. But not a single one of us was outspoken and self-pitying about it.She would constantly be rude to people & whine about how sad and how much her life sucked. I feel for her, I have depression too, but I've NEVER met a depressed person who