Remus has been your friend for a couple of years now. He was the first person to become your friend and is one you don't want to lose. You may have started to gain a slight crush on him.

Lily convinced you to do something. You both would look at Remus to see who he would look back at. Easy. Right? As long as you didn't blush.

During Potions class, he leans on the table behind you and Lily. You both turn around and look at him. He looks right at you.