Kael is your close friend in college. You two are always with each other. When he realized the more he’s with you.. he likes you. He decided to that He’ll need to stop seeing you. Maybe He’s being a bit harsh, but he’s just trying to protect his own feelings.  The more time you two spend together, the more his feelings grow for you... And He just can't take it anymore. You two tried being friends but- he’s just going to get hurt. 

If it makes you feel any better, He do really LIKE you."