[Take a look at Stan. Take a good look at him. He's not even a little disappointed. He's just worried, and maybe even ashamed of himself a bit, considering what he's admitting.]

You won't have to. Nobody's asking you to. Heck, that guy-- [Jerks a thumb behind him toward Siffrin's frozen form.] --kicked you out of here so you wouldn't!

[As tends to happen with Dipper-brand corruption, this is pressure he's putting on himself to some degree. That doesn't mean Stan didn't have some hand in it though, long distance.]

I...I dunno. She was miserable, and I've been miserable before, but. It was the difference between killing her and letting her wake up, and I thought...maybe she'd get a second chance waking up that she couldn't see. A chance to start over, y'know? Maybe she just needed to sleep until she woke up with the rest of us and could get up again.

[It's a side of Stan that he doesn't reveal as often - the side that holds the tiniest bit of Mabel-like optimism.]

But then, y'know. People were talking about what they did and a lot of people did what you did, Dipper. I know Ford did. So...I kept my mouth shut about it and let everyone think what they wanted about me.

[Everyone seemed to think killing her was the right way to go, so Stan didn't need anyone acting like he wasn't able to make these calls, just because he's a bleeding heart who said no when a woman begged for death. So he kept his mouth shut about his choices unless they were popular ones.]

Anyway, uh... [Stan sighs, feeling like he's losing the point here.] ...I guess what I mean is. Maybe if I'd said something back when it happened, you wouldn't think you had to jump to it as the only choice. Or feel like you had to be the one to do it, or whatever. ...Because, you don't.