just_postit It turns out, I haven't learned a thing

[SO locked from Dean and Anna]

Okay, I know love does crazy-weird things to people, but there's something I don't get.

My sister is one of the smartest people I know. But she's killin' herself over a man who probably won't ever love her back, even if he manages to survive the war he's in.

She knows this, but she still keeps tryin' to hang on to him. Anna's clingin' to the hope that if he comes out alive, they can be together again. But I know she's aware of how ridiculously unlikely it is.

Why?