Honestly, that dude is just creepy as this point. A man move on if he fail to get the woman he want, accept it like a man and get on with it, not obsessing about that woman all the time till her SON got into your old high school. Just a creepy loser, I wouldn't want someone that always thirsty for my mother to be around her. His whole character is making this manga less enjoyable, like you eat a 5 star Michelin dish and find out that there is half a cockroach in your dish.