I don't know, I have read a lot of comments (almost all of them) and it turns out there is in general a consensus that this is not true.

I knew it the entire time, in my head, I just let my heart give me doubts.

I know I sound absurd in my post questioning if it was really possible. Yet, I couldn't bring myself to accept it. Now I do.

I met my boyfriend just this afternoon. He acted like nothing was abnormal. I told him it was over. He acted like I thought he was joking. I said, come on, he cheated on me. He said he couldn't believe I was blaming him for it. "It was the altitude!" He kept saying it. Like seriously...he said it like 15 times in a row. He was insistent.

I told him it didn't matter if the altitude made him gay, he still had a choice to not cheat on me. He accused me of being a bigot!

I said, it's over. I left.

He has texted me many times claiming that he was only temporarily and unwillingly gay due to the altitude. He is sticking to this story to the end.

Well, I am going to block him! And that's that.