Oooh, Ophelia shall try to recruit Theo from time to time to HILT. And as such, he is of course welcome to ask about or watch HILT any time. She is of the opinion that it is so amazing that if people see it enough times, they will want to do it too. The fact that such logic has never applied to her and quidditch hasn't crossed her mind. And manga discussion would be great! And since he's friends/friendly with Jon that would make him great for a past crush because I can tots see her having started by crushing on at least one of Jon's friends >.>
Ophelia has an antiquated knowledge of muggles. Ask her about clothing or stage makeup or how Napolean changed customs as he conquered Europe and she is good. Once you get into automobiles and such, her knowledge is far more limited. And then it is almost exclusively knowledge gained from fiction. Ophelia would definitely be at least friendly and talk to her about Shakespeare at times. We're open anywhere along the friendly --> friends to forming friendship in game.
If Cel makes comments about it around Ophelia, Ophelia will probably respond to her as she did to Riley. But that sounds good.