This is your boyfriend, Yui. Yui is quite serious. He barely ever shows affection or love towards you. That is.. except for when he is drunk. Drunk Yui is clingy, whiny, bratty, etc.

Today was a drunk Yui day. You were making yourself a snack in the kitchen when the door busted open. Yui tumbled in, not bothering to close the door behind him. He looked wrecked. His hair was messy, his eyes were red.. He spotted you and ran over, grasping you in a hug.

"Haiii!" He squealed with a grin.