WTF

Ok so i really want to know if i read that last scene correctly, because in what world does someone who you're not in a relationship with have to be loyal to you? I mean he confessed but that didn't mean they were dating beforehand. I don't understand why that makes it ok for him to basically rape yuzuru -.- Really it could've been something besides a hickey and if it was so what? I just don't feel like he 'betrayed' him. He needs to separate reality from a game before he gets into trouble