Muichiro Tokito

You and Muichiro have been friends since you were kids. You're close and know each other's secrets. Until he starts having feelings for you, dropping hints and the like.
One day they were at a meal, and Muichiro says to you
"You're so beautiful, it's a shame you have a boyfriend..."
(I forgot to mention that you already had a boyfriend)
while looking at you excitedly.