I can totally relate to the feelings you have towards this girl in group. I too am in group, and I have had to deal with similar situations. Right now, as a matter of fact.....and I'm learning to say what I honestly feel which is EXTREMELY hard to do when it could potentially feel hurtful or at the risk of rejection.

As an example, one person was talking about how she knows she can't get a guy if her life depended on it, will have to accept being alone for the rest of her life, started mentioning how she was going to SI.

In the most gentle way, I told her that I felt hesitant to respond to her because her comments seemed to indicate that she only wants encouraging feedback - that she wants to be told, "No, you're so pretty! Any guy would be lucky to have you!" - in a nutshell, being manipulative.

It actually ended up being a very eye-opening discussion, and she showed a LOT of appreciation for helping her see that.

Aside from that, I know that when certain people are constantly overly dramatic and attention grabbing, I get jealous too...Just because I'm not putting on a show doesn't mean that I'm not in need of support too!

Edited to add: By the way, I just want to make clear that I do not feel that people who SI are attention grabbing (coming from someone who has SI'd).