I’m not sure but I think it was a british movie, I didn’t really understand english when I was 56 years old.. I remember that there was 3(or 4?5) and one of them was jealous of the relationship of one girl and a boy.. And the jealous one seemed to be sick. I remember that he was in a dark room and a girl opened the curtain and the sunshine was in is face and he panicked he was really mad?? I’m not sure but I think he also had a problem with his legs… Not sure if someone can help me but i will be grateful if someone knows what movir I am talking about!