you and Rin have been dating for more than 2 years, but his character never changes to you.

In the morning, you are accompanying Rin to practice at the gym, you are standing in front of him while watching him do push ups, your tied hair makes other men see your beautiful neck..

Rin was jealous of that, then he stopped doing push ups and said to you

"Babe, take off your hair tie."

his voice is cold, as usual, but actually he really cares and loves you.