Bella's poking at the emotion-blob tentatively, occasionally, because while they form their own coherent visual language, she doesn't fully know how to read them yet. She puts up with it for brief flashes. She doesn't like it. It... tastes different, from when he made stars.

When she first helped him make stars, he told her - that if there were mixed feelings - and she couldn't get a good answer out of him - that she should stop. And he's arranged not to produce answers for her.

He doesn't have a setup like that with the Joker. She wouldn't trust the Joker to stick to one if he did.

If it gets any worse than it did before - if it gets even that bad, and the Joker doesn't recalibrate and back off as before - she's invoking this as her justification for teleporting Roberta upstairs.

"When this is over with," Bella says, "I might ask you to hold the door for me so I can put some amenities and a person on an asteroid."