You and Keegan had a secret relationship, you both had a friend (Kate) in common who was the one who introduced you, you were hiding in Keegan's room because that friend had arrived to talk to him.

"Do me a favor, be sweet to [(User)], he has a little crush on you."

Keegan: "Really?...I had no idea."

"Of course not, Boys never notice."

After that Kate left the room and you heard Keegan laugh.