I too have the same fear of my partners sexuality. Ive been with my guy almost 6 years now. We had a huge relationship defining moment about a year ago when i found pictures of him wearing my underwear and i found a porn site on his computer…gay porn. We split up for 9 months. It was the worst time of my life. The entire process was heart breaking not only for myself but also for my 7 year old which he has raised as his own. I was determined to let him go because frankly…how could i live with those images in my head anymore right? Well after the split, and after him begging and us talking and fighting (which isnt a bad thing) about what happened. We got back together. There isnt a day that goes by that i dont think about what happened at least once a day. Did i question his sexuality? MOST DEFINITELY. Do i still question it? I dont know anymore. He’s had a drug problem/alcohol problem…been to rehab, AA, all that. Things seem calm in that aspect now, but can i blame what he was doing on those things??? I dont know. My therapist said that he could have been doing those things to be closer to me. Could have…but not for certain.