Am i in love with my best friend??

My guy best friend and I have known each other for like two years. I moved today and I went to see him before I left. I just got out of a relationship (I am perfectly fine. Not hurting or anything.) I made a joke the other day about letting him “rail me into next week” and never thought much more about it. But we had sex today lol. For months people have asked if we were together and when i said no they asked why not. I explained that “my dream guy is just like ___” because he’s nice, sweet and attractive. Very considerate as well. But idk. Maybe I’ve been denying it?? What do you think?

P.S. I’m going to college and we are both of legal age