Fallen for a friend. ❤️

What do you do when you might be in love with your best (guy) friend? I have liked him on and off for a good while, but now that we've started going to college together and getting even closer, I'm afraid I'm falling even more in love with him. I don't know if he would ever feel the same way. He sends me mixed signals. Like I don't know if he's being all "flirtatious" in a friendly way (if that makes sense lol) or because he actually might like me. Help please.😅