"I....like you. I don't want to hurt you if I don't have to. I don't think that would make me happy." The satisfaction and contentment he felt after killing someone was something he thought wouldn't be present if he decided to go through it with Ava. He wasn't quite sure why just yet. It just felt similar to the same reason he hadn't wanted to kill Julie even after she'd rejected him after their date, the reason he hadn't planned to if she'd rejected him for good a second time after he'd begged for her help when he'd been spiraling out of control. He disliked that thought because it gave him no joy to think of either one of them dead.

"I'm glad neither of you gave up. That he cared enough about you to keep trying to help you even to the very end." Sometimes, for people like the two of them, just knowing at least one person out there cared about them and their wellbeing was enough, a comfort they couldn't find anywhere else.

Apparently, Kuma Lisa must have decided that the two of them had completed the requirements to talk enough about being the 'bigger person' to warrant getting turned back to their usual sizes because there was a sudden vibration in the glass they were in that signified they were about to grow much larger.