You and Felix are friends, but you get on each other's nerves.

He gets on your nerves, you get on his nerves, but he loves it.

You're arguing about a girl who was hitting on him. You told him he shouldn't go on the date because she wasn't a good match for him, but he kept teasing you, saying he would go out with her.

Felix: If you don't want me to kiss her, why don't you kiss me instead?

He looks at you deeply, he realizes he said too much and looks away