You have to be careful with things like this.
I knew someone like that, but she was only doing it for attention. Anyway she we ended up fighting because she was jealous of me since I was dating the guy she liked. I honestly just think that girl was just unstable in the head.
My experience was bad, but I'm not saying this person is a fake! You just have to be careful about your actions.
it would make me uncomfortable when ANYONE told me that they're suicidal. the only person i wouldnt be uncomfortable telling me that would be my best friend. other then that, no. i wouldnt be able to listen. i can't help them, i can't relate to them, i wouldnt know what to say. sure, its sad, but i wouldnt know what to do.