[That takes some of the tension out of her expression, though it's less that the guilt has dissipated and more that she doesn't want to put one more thing on her shoulders right now.]

Why would he... She was going to die either way, so why would he—?

[Through the confusion and shock, there's some anger breaking through - for Dazai, not for herself.]

You shouldn't have had to do that. That's not... That's fucked up!