I don't think it's that connected to Frozen. I mean other then Catilin and Elsa both not wanting the powers they have. Also the Queen of Fables, if I remember right, was able to convince Caitlin to make a wish by telling her about her own sister and how similar her story was to Caitlin. So Caitlin talks about it because the Queen convinced her that what happened to her sister in the end would happen to her. That scares Frost, so when she mentions Freya, if I recall right, it's talking about how she doesn't want to end up like her.
I'm lost in who you mean by the dark haired guy. Ryan does have dark hair, but so does the Ray's boyfriend or whatever they are. I'm also guessing he stopped wearing his glasses cause it's not easy to fight with glasses on lol. Trust me, glasses get in the way a lot. Maybe he has contacts that he puts in now?