I had a gay experience once but don't feel gay nor bi?

about a year ago while i was studying abroad i made a friend who was gay. He was cool so we hung out a couple of times. The fact that he was gay and I was not was never an issue or anything. If he wouldn't have told me i probably never would of known. Because he lived on the other side of town i stayed over a couple of times. That was never weird or anything because we we're just friends like any other. But one night, there was this awkward vibe, i remember wondering if he was flirting or not but didn't say anything because I didnt want to embarras him. When we went to bed he started to cuddle and i was pretty uncomfortable but again said nothing. I just didn't know what to do. Eventually he started to kiss me and i said that i liked him as a friend but not in that way. he said he was embarrassed and that he hoped this wouldn't change our friendship. I said it was OK. We then fell a sleep for a short while but woke up in the middle of the night. He started to kiss me again and this time i just went along with it, not wanting any more awkwardness and actually at that moment i liked the affection i was given. he started to touch me but i couldn't really get hard. For some reason i felt embarrassed about it, like you would have if you had sex with a girl. Because he was pretty horny I eventually jerked him off. I was kind of curious about what it would be like to touch some other dude's dick but while doing so i didn't particularly liked it. It just didn't do anything for me. After there was no awkwardness at all and we even joked about it. But after some time that changed and somehow i felt as if he expected more from it and that he was convinced that I was gay. I told him I didn't regret what happened at all and that i did enjoy it on some level at the time. But I just prefer girls over guys. I haven't seen him in a while because I left a couple of weeks after. We sometimes talk but it's just not the same anymore. I feel like he judges me and it's like I always have to defend myself. At this point I do regret what happened because it changed our friendship in a bad way. I am very openminded and don't feel confused or anything about this experience. I believe that having an experience like this is OK and that does not necessarily makes you gay or bi. I was never sexually attracted to this guy nor was I ever to any guy. He made me feel like what we did was not normal for a straight guy which makes me feel embarrassed about it although i did not feel like that initially. Am i so different that I feel this way?