I like to think that Per is trying to protect Win from his parents and is jealous of the new guy. He might not be jealous is a gay way but rather because he misses his friendship with Win but thinks he should stay away so his parents don't hurt him even more. I don't know. In the intro we see Per sing to Win so maybe this is yet to come? It could be that all of this brings out feelings in Per or helps he define his feelings for Win. Either way I think the actors are doing great. Sing has such a great smile though. I miss it. We will see what happens.