Confess to ur crush

Ok....yeah I've confessed to my crush but it was the worst timing, what could I do?, I just told him I liked, I confessed to him in front of his friends, I don't know if that was out of courage or stupidity.......any ways he already had a girlfriend which was my friend but I still confessed because I couldn't keep it in, he smiled then asked me some stupid questions
His girlfriend heard I confessed, was happy I don't even know but she didn't seem angry. Later on my crush cheated on her with another girl and my crush and I are best friends but I don't not have romantic feelings for him but I still tease him saying I loved him and we just laugh it out ...┐(´д`)┌┐(´ー｀)┌