That reaction was almost enough for Jin. The small concession was more than he was expecting. And being told that Shigaraki still had faith in him bolstered his conviction.

So when Shigaraki asked him how much he trusted him, Twice was already nodding even knowing full well what happened to things in Shigaraki's hands. That didn't stop the sudden surge of fear he felt, that if this went poorly as far as he knew he could be a puddle of goop on the floor. By the entire point of joining the League was to find people he could trust.

"I trust you more than I do me."

No contradiction followed.