So hes an incubus or not?

I do believe he is not, they just both have some issues of their own.
The bait for it is too strong.

Ty

I mean, I don't know for sure. It's just what I believe as someone who usually gets these things right.
But it does seem as if the author has already written a few stories with Succubi / Incubi appearing in them, so I guess the chance is 50/50.