Isabella Chen-Lopez and Margot Stokes
Does Isabella have a crush on Margot? Of all the people that Isabella interacts with, or attempts to interact with, Margot doesn't seem to be the target of her derision before she puts on the mask. She attempts to talk to Margot in the hallway when she sees that she is upset. Neither before or after this moment do we get any indications that the two of them are or were friends. So why did this happen?
At the Halloween party we also see Isabella have flirtatious interactions with both Isaiah and Allison, indicating that she may be bisexual.
I just keep going back to that hallway scene. It's the only time I can remember when Isabella attempts to reach out to someone.
It'd be fairly amusing, at least to me, if it ends up that Isaiah, Lucas, and Isabella are all competing for Margot's affections.