Stuck in their shared body as he is, he can tell when the shock of realization hits. It's a relief, and at the same time he can't help but feel a little bad for the kid. He hasn't wanted to burden Xeha with what his predecessor had given him, mostly because he knows the explanations would get awkward fast.

Save it for later, kid. I'm the one who invited you in, remember? But if it's all the same to you, I'd kinda like to have my body back.