If Topher's heart did a weird little flip at the phrase Tony's boyfriend, it was... completely obvious for a few seconds, and then he went back to working this out.

"So people aren't cool with you just whipping it out," Topher assessed, too focused on this to be aware of the possible dirtiness. "Like you might get in trouble with the school for threatening someone?"

Be relieved, Karla: Topher didn't quite get -- and probably wouldn't get, so long as it was just him thinking on this -- was that Ender would be upset at her for threatening him.