Boy crushes??Help me please

One year ago i liked this guy and he was my bestfriend but i rejected him several times so we wouldn’t have to ruin our friendship, one day he just stopped liking me and we lost out friendship and fought, then he told his friends im a “hooker..” one of his friends was a guy i found attractive and had a crush on. This year i met a guy thats so nice and pure hearted and treats me perfectly we’ve been dating for 2 months. But i keep thinking of the other guy i liked all the time and i feeel guulty and i dont know what to do at this point

Ps. I dont even know the guy (never talked but prob knows me from my ex bestfriend and i saw him in a party)