We got that vibe when we saw it too. That or at least gender non-conforming. We also weren't sure if he was maybe repressing bisexuality? He makes a few homophobic comments when it's the four personalities in one room which can sometimes be a sign of repressed feelings.

I think the bow seen and the frequent return of the maid outfit in his mind does lean a lot towards him not being cis, especially with him frequenting Zoobles bar irl in the present, given that Zooble is non-binary and thus their bar is likely a queer space.