[Does she always talk about traumatic things without breathing like that, dumping them out like it'll vent the pain?

...No, this other girl must be like a dam breaking.]

Slow down so I can keep up. I haven't been in a similar situation. It would be a good thing to find your brother and not have to die, typically. Is he the one who betrayed you? ...Were you not angry that he was alive all along? [She can't quite wrap her mind around that bit.]