I think you need to chill out
but also there was a lore implication (maybe multiple) suggesting Dominic is indeed a woman. It's been a hot minute but I want to say it was in a journal entry or something like that. Something that you clearly aren't supposed to read but you do. I think there was also something about Dominic hating the MC in there? Frustrated with how quickly MC picks up magic iirc. Some kind of private diary but I can't for the life of me remember where it was.
room 7 right across from your room, he calls himself a gentleman, and refers to his mom as being powerful, he also talks about eating spiders, he also talks about hunting down various succubus to absorb their powers (similar to what Dilan does)
hes doing this to get his home back, the other members of the occult have dormant powers in them
I just went back in game to read it theres nothing that implies he is a women and the only thing that implies hes a man is the way he refers to himself
so maybe he is an Incubus that is the only thing I can think of, other than that his journal is creepy
so if I were to speculate - his mom is a powerful succubus who was (betrayed?) (cast out?) or he himself was betrayed, and he is an Incubus hunting down various succubus to gain power for vengeance, he is also cultivating the other members so he can eventually absorb their powers (our MC would be included in this)
now he could be a hidden women (although there are no signs of this) and I would prefer it if he was a women because I find that kinda crazy and toxic two faced attitude hot
thinking about it now, fighting Dominic and absorbing his powers (the way we do with succubus) would be an efficient way to get the power needed to approach the stronger succubus
In the end everyone is toying with us, except John our only true bro