YES HI! Sorry this reply is so late. I read this JUST as I had to turn my phone off, bad timing on my part. =( I'M GLAD YOU RESPONDED THOUGH because I was going to if you didn't.
So yes! Roxy and Kelley, same year. So they definitely had class together and probably knew the same people. IF she knew/found out about him having predictive dreams she would be very interested. Her brother is a Ravenclaw and works with the Extremists (which Roxy is kind of wary, but still mostly indifferent about) but that could give them another point of contact too? Maybe.
Lysander... yes. The boyfriend would be two years older and Kelley one year younger so he would probably know both of them, maybe? Lys is less social that Roxanne but more observant so he tends to notice when people come and go. And I'm sure he would be in and out of the Magical Menagerie all the time for whatever reasons so they would probably see each other there a lot?
Idk! But yes I'm back and ready for anything and everything!