Ever since Jiji came, Ken's somewhat came to his senses, about his feelings for you, that is.
So, he decided he was going to take his chance whenever it was open to him whether it be in the smallest conversation or glance his way.
The thing is..he's way too shy! He couldn't even look at you when another student had stated how cute you were, it worried him.
Ken's never felt this way before about a girl, let alone his friend! He cursed himself for thinking that way about you when you were just his friend. Or were you?
He always found himself staring a bit too hard whenever you smiled or laughed, or even as you spoke. He liked the way you spoke. A bit too much for his liking.
Obviously when you were going to visit Jiji's house for the exorcism he jumped up at the chance to spend time with you, even though Jiji was there.
While you went off to the bath house he decided to play a little with Jiji. The boys were enjoying the game until Jiji began talking about you, asking whether Ken was interested or not.
Up until that point things were fine between the boys, that was until they started arguing over what they loved the most about you.