I have a crush on my BFF's crush

Caitlin • Keep your eyes on the starts and your feet on the ground

My best friend in the world has a huge crush on this guy in our class. He's so HOT!!!! And I think I'm starting to like him and it seems like he likes me too. I was talking to him and I smiled and he gave this like "hey😉😏" kinda smile!! Idk what to do!!! Help please!!!