Scott: idk how Scott would react to having a vampire who’s older then him around, people who are better versed in Scott sound off, but I think Arva would get along with him they’d be divas together. She’d honestly probably also make Scott worse and bring out his most violent tendencies as well.

Legs: I think legs actively hates Arva since she’s actively trying to Make Owen Worse and I think this leads her to be fascinated with him and thus she’s trying to see if she can get him on her side or at least how hard she can rage bait him

Apo: I think there’s some sort of (at the very least one sided) transfem to transfem connection between them, I also think Arva (who has had a rough past which is partially why he’s Like That) reacts to apos turning by getting sort of protective of her and throwing vague shade at Scott about it. I think apo does Not like this I think it creeps her out frankly

Pyro: pyro reminds Arva of her younger, weaker self and thus she hates him and his mean to him about it in a totally normal and not at all projecting sort of way, I think pyro reacts to this in the same way he did to Scott, trying to please her and not understanding why he’s failing