What's interesting is that, honestly, I would have a totally different opinion if it were a straight male hitting on a woman. I guess it's becasue women have to put with so much more of this and it's much more often unwanted (probably simply because something in your response and chatting told him you were gay which might have been a sign that you didn't mind the attention).

So, no, I wouldn't report it unless he starts harrassing you. But I would have reported it if he were conatcting female passengers. I'll let the accusations of sexism and double-standards begin.