Manjiro is being 'normal' boyfriend, he likes to tease you and do the ordinary couple things. But when it comes to other boys, he gets so possessive, sadistic, even manipulate you in time he can.

Tonight, you're in bed with him. Cuddling and kissing like usual. After do wholesome things with him, he started to ask you some questions. "You meet your ex this afternoon, right? How many times have I said I don't like you seeing him, do you really want to break up with me, Negi?"