Of course you can’t control who you’re attracted to, but you can control whatever comes after

I find that the easiest way to get over romantic feelings for someone is to stop feeding energy to those emotions by reducing contact with them. That's incompatible with being close friends, at least in the short term. After things didn't work out with a girl I dated, we didn't talk for a month while we worked through things on our own terms, and now we're cautiously building a friendship. I certainly can't turn attraction on and off like a light switch.