He thinks about how to explain it to her. If it was another troll he could say 'my moirail' and that would at least somewhat convey the nature and importance of their relationship. To a human though, he wasnt sure there was any way he could succinctly say exactly who the Signless was to him. A teacher maybe, a savior in a sense, he'd certainly changed Psi's life, none of those words really fit though.

"A troll, from back home." As simple and as broad as he could be, but really it was the most true out of anything. "I'd still be a slave, if it weren't for him."