He practices psychology lol. Manipulation at its finest - albeit deemed negative but it's not bad all the time. He navigates people the best way that benefits everyone imo. The only problem with him is because he is too smart and overly protecting himself from getting hurt, it took him a while to realize he was already in love. Him being this pushy is him realizing if he lets go of Kyuho, he'll regret it and miss the biggest opportunity of his life. So yeah, getting Kyuho back is beneficial for him the most but he knows Kyuho will benefit from it too.
It's very calculating. I can somewhat relate to him.

Another level of manipulation. Why don't he listen to mc if he said he don't want to date you ,just leave.
People who saying oh he confessed but only said to be a sex Friend because mc rejected him. That's manipulation, he said this to get what he want with no regard of mc feelings. if now mc agree to this , ml going to use it , like you know I love you but you accept the sex Friend relationship. ( ̄へ ̄)basic old tactic that happened with real life people.