If there aren't any clues which are making you question his sexuality then for now you need to accept that this isn't likely - maybe sit down with him and put an emphasis on how you're not questioning his behaviour you just have these obsessive thoughts which have come out of nowhere and if he could put your mind at ease you would feel a lot better. Im hoping that if he was gay he would admit to it, at least if he saw just how much not knowing was affecting you. That said, there is still, bizarrely, a lot of stigma surrounding homosexuality and he may not feel entirely comfortable 'coming out'. If you do decide to broach the subject, explain very clearly that you won't think he's abnormal or feel disgust towards him but that you want him to feel he can trust you and be comfortable in opening up. Who knows, he might be more likely to give you a truthful answer. All this said though, i think from what you've described its unlikely he's gay - so throw away those magazines, half of the stories are made up to attract more readers and they're only featured so as to shock and appeal to our morbid curiosity. Most peoples lives are nothing like what gets published in them so please try and put them out of your mind. Focus on the meantime on loving being with your partner and enjoying the relationship you have. Hope ive been helpful. All the best.