The thing is, my friend is gay and I think so did he...
..until we discovered that the guy was a religious, homophobic crazy person. My friend literally stopped talking to him, I became friends with him. It didn't end well, because now my friendship with the guy died away and I kind of feel empty because talking to him felt nice even if it was hopeless. I also thought I was helping him out in some ways...
I also discovered that my friend was gay when I saw a 'gay asian feet' website on his bookmarks on his phone. He doesn't know I'm bi but I think he guesses.