When I was younger, in my twenties, I would get hit on by gay men quite often. I regretted that I Was not hit upon by more women...?!? I felt somewhat ambivalent about the advances from gay men, But I did find it a bit flattering.
I do think it may be a vibe, that gay men misread. I happened to work in a profession where Many of my colleagues were gay, so perhaps that had something to do with it.
Of course it also depends what your definition of being "hit on" is. I was never (thankfully) put in the position of having to forcefully fight of an unwanted advance.
Now that I'm in my mid 50's nobody hits on me, so enjoy it while you can.