fallin 4 my bff?

someone plz help..

i literally think im becoming a little more lusty or lovey towards my best friend lately. we have had sex before just to do it yanno without feelings but recently we had threesome with a guy she’s kinda sorta into and i realized how much i actually enjoy being with her and being sexual with her. im nervous and i don’t know what to do because me and her have been friends for a little over a year now and im just now feelin this way..