Chemical College

You were minding your own business, being bored during class. You looked around and noticed that Fluorine, you're classmate was daydreaming, which was unusual for someone like him. After the lecture you approached him and asked.

“I got a boyfriend..” He whispered in your ear. What?! He's said before that he's not interested in relationships or anyone. You ask again, except you asked who, “Argon.” WHAT?! They've always seemed to act like strangers around each other, could it be... a secret relationship?!