Bella calms down somewhat as Alice falls asleep. There is a limit to how much psychological shit the Joker can pull on a sleeping Alice. She's pretty sure that talking to sleeping people doesn't tend to do worse than maybe influence what dreams they're having, and two can play at that game if she sees any dreams she doesn't like flitting across her vision. Non-psychological behavior might squick her but she doesn't think it'll do Alice prolonged harm.

"Something wrong?" Bella asks Roberta. "I guess eighteen-year-old girls don't routinely announce their willingness to kill terrorists?"