R texted me first time to ask for class notes. His friend (S) texted the same day asking "R is msging you, right?" That's how I made a guess he liked me. Turns out my guess was right.
I didn't like R, but started liking S instead. I told our mutual friends in the class to ask for advice about the situation.
When R got know I told others about him having a crush on me and that I like S instead, he got offended. He's been behaving cold since then. It makes me feel sorry for him.
One of my cf is saying I should apologize, the other one is saying not to.
Should I apologize? And how exactly should I apologize to him, if yes?