Is my husband gay?

I was always deeply hurt by his strange behavior and a lot of self doubt that he brought into my life. My only reassurance was I dated a lot of men before him that treated me very well, so I always knew that I'm not the cause for his strange behavior. He is so distant, always emotionally unavailable, but what gave me the clue is that he told me that he was always repulsed by his ex wife, and once when we were both drinking he confirmed to me that most woman don't make him hard, he made such a fuss about how I make him hard and how it was a surprise to him lol ( is he a closet gay) anyway I don't have a problem with gay people , I just don't see the fuss of me making him hard no one ever stressed that to me so many times, what's up?