Frankie/Jason
Frankie didn't hate Cassie. She wanted to, because it really got under Frankie's skin the way Cassie acted with Fox, but everyone else in Frankie's life really liked the demon, and there had to be a reason for that. She seemed nice enough, but Frankie couldn't suppress the jealousy she felt.
Simply nodding at Jason's response, not sure what else to say, Frankie started to play with the hem of her dress. She was angry with Fox for not being here because he'd been so damn stupid. It should have been him dancing with her in this pretty dress.