Probably zero - Japanese are not exactly noted for being freaky in that way. Now if you're looking for a girl to torture him with a wire cutter......
I thought he had come a long time ago. I don't know why but I knew he had a long term gay partner for years. I thought it was public knowledge. Maybe I knew some people who knew him, or something and heard from them. I don't know why I thought this was a known thing.
Maybe for the same reason why Tom Cruise, and Kevin Spacey is "known" for being gay. It's a rumor that a lot of people take seriously.