Guy's Behavior

He randomly unfollowed and blocked me —i am very confused?

So me and this guy met at a party at a resort where we danced together and also where he invited me to hang out afterwards. We were having such a great time together until one of his friends told me that he had a girlfriend. The guy that I had been dancing with said that it is fine because she was not there and did not have to know. The rest of the night he seemed evasive until he saw me leave. He wanted to meet up later at our resort but I was leaving the next day so we then exchanged instagrams. We were private messaging (nothing flirty) until i realized that he had unfollowed me randomly. The next morning I was blocked only on my main account. I figured that his girlfriend found out or maybe he felt guilty as he started doing all of this once he got home from vacation. I have asked friends about this and they also suspect the girlfriend is part of this but we are all still confused. I only wanted to be friends with him and respected his girlfriend. Please help I am so confused

Updates
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Do you think that he could’ve gotten bored with me and our conversation so he blocked me to cut off communication?
He randomly unfollowed and blocked me —i am very confused?
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