Zetta glanced from her to the bed they were sitting on, but somehow managed to say absolutely nothing suggestive or indecent.

"I told you I'd find you. That's a vow made by an Overlord! And you know how seriously I take that stuff!"

Pretending that he believed she'd be gone would be difficult if SHE had any doubts at all -- but she seemed to believe it wholeheartedly. Or wanted to believe it. Same thing as far as he was concerned.