Help please. I'm so confused

Hey Everyone, I am not sure if I'm just horny or gay. Whenever a girl hits on me I am very uninterested, but when a guy does I feel amazing!It all started last year when an older co-worker grabbed my ass in the back room and talked dirty to me and I was so turned on but I never acted on it. Now a gay neighbor came over and we got to talking about gay stuff and we ended up kissing, then the day after we kissed we had oral and it was the best experience of my life (first bj, YAY!), but he's moving. Now I'm stuck with all these unfinished emotions and I want to experiment more but I don't know any other gay men, especially ones I trust. I don't know what to do.