Married men and porn?

My husband watched porn a lot before he met me in his teens. Well, since we started dating and gotten married he hasnt looked at it as much, but he still wants to. I have tried to let it not get to me over and over. I have tried watching it with him, but he didn't like that. I just cannot get over it. It hurts me so deeply and I have told him this. I am very sexually giving; I never say no. We have sex at least once a day and I offer him bjs out of the blue also. It'so not because he is not getting enough. I am not a "prude" in that I am willing to try whatever...outfits, hand cuffs, whipped cream, all kinds of positions. I am not overweight at all or ugly. I just wish I could understand why he needs more than that...like I said, his needs get met whenever he wants it, without complaining or sighing. I love sex with my husband. Why do men need something in addition to their wives when all their needs are met? This is breaking my heart.