Oh, there's certainly a regret there. And a distress for what things have become. He meant what he said, when he wasn't altogether sure he regretted it all, but parts of it? Parts he knows went wrong, there's not even a question to it.

And though he stiffens at first, he doesn't pull away. Though his free hand comes up to Tadashi's shoulder...it doesn't push him away, either, though there is the pressure of his weight as he leans upon it for a few moments and allows himself to wallow in this grief.

He doesn't know what to do. Everything seemed so deceptively simple, at the trade show, and yet it all went to hell and back.