[He really doesn't mind. He also suspects the hesitance is because Byleth is unsure of that fact, but... given how often he lied about his mental state to Byleth and everyone else, he knows saying as much again won't do much good. Byleth will have to come to that conclusion himself, or decide that regaining a corporeal form is more important than Sylvain's feelings on the issue - another point he'd rely on himself, if he did mind.

The touch is still light. Byleth still occasionally slips through him. He's left to stand there more than willing to assist, but unable to contribute with a returning touch until Byleth is more solid. It's concerning, to say the least, because who could say if he'd disappear entirely any moment?]

If it would put you at ease, I will not pursue him, even here, but I likewise won't deny him.

[And that's the best he can offer him. He's correct - 'important' does not begin to cover the depth of feelings he has towards Dimitri, and he couldn't reject anything he would ever ask of him, even if he wanted to. He doesn't want to.]

...And the same goes for you, Professor. Just... let me know what you want from me.

[Sure, it'll hurt, if he tells him to keep them at arm's length or further, but... if he's honest with himself, he loves them, so their happiness is much more important than his own.]

Maybe... wait until you've got your body back to decide, though, hm?

[He can't be all that helpful once Byleth starts being a little more corporeal if he feels guilty about reaching out and touching him, after all.]