"Sorry, sorry! I told you, I hit the wrong button," he says, "fight the bad guys, not me, there's plenty of them to work on, aren't there?"

He nearly stumbles over the controls again when she says 'black rivalry'. 'Black rivalry = black romance = romance!', his brain unhelpfully supplies, and he shuts that down, since that's totally the wrong one, or at least he's pretty sure it is. "I could never hate you, Rox, don't be silly," he says, nudging her with his elbow. "All that rivalry stuff sounds like a waste, anyway, if somebody's your girlfriend you should be kissing her, not pissing her off."

That was... vague enough? Right? Not with the flush deepening over his face, probably, but--wait, was that a tank? "I call the tank," he says, hoping to salvage the conversation. "So don't blow it up."