<human>: Give me a shortened version of the text

OK, so she got with this guy like 8 months ago months ago, and a few months into the relationship he cheated on her and they broke up for a week or so before he convinced her to come back to him. 

They went steady for another two months, then he went to South East Asia for a month to do "charity work" (read: holiday) in the jungle.

The whole time he was away they were exchanging postcards and she was constantly gushing to everyone how much she missed him, and how she couldn't wait for his return.

She met him at the airport with his parents, and he acted oddly distant to her - and over the next few days he was aloof, ignoring or being slow to reply to texts, before she eventually got a "I don't want to be commited" text from him and he stopped all contact altogether, giving her no kind of closure.

Now, I could wax lyrical about how much of a dick he is, since she put her life on hold for him and he couldn't even fucking break up with her like a man.

But I'm more concerned for her wellbeing - since it happened she's been using recreational drugs again (it was a problem for her back in the past but she moved cities and quit), she's smoking ridiculous amounts of cigarettes, and she's been weird.

I've tried to talk to her about it, but she says distressing things - talking about how it's her fault, and she brings up other problems in her life that aren't her fault either as examples of how she's a failure - and then when I try and reassure her she goes and sits in her room (we're flatmates) to be upset.

She's one of the most special people I've ever met and I know that I can't make everything better - only she can do that - but I don't like feeling powerless, how can I help her?
<bot>: Best Friend's Ex broke up with her badly, now I'm worried she'll hurt herself if things don't get better for her