Trying not to be so disappointed

Me and my husband are 38 years old been married since we were 18. Only 1 child, hes 20 now. We have had many ups and downs but over the last 10 years especially the last 5 he is my best friend and we love each other more than ever. We are very touchy still, constantly telling each other how amazing they are, and love spending time together while still having our seperate hobbies. I have never been delusional about him watching adult content, its never really bothered me much because his content contains women who look like me but with bigger chests. The only issue iv ever had was if he spent money on it when its free all over the web. Yesterday he told me that he accidently purchased content for $50. Iv really thought about it and im trying not to be upset. Im very disappointed and trying to accept that it honestly doesnt matter how skinny I try to be, how pretty I try to be for him, how exhausted I make myself by working extra so that we have the things we want without straining our accounts, how much I do for him to make his life easier, how much sex we have or BJs I give( i never say no even when I dont want to) in the end he is still just man who will seek out gratification from other sources when he is "bored and im not around" his words. We were just off for 4 days together and had sex 6 times, 69'd, and I gave him a BJ so im not sure what else I could have done to make him satisfied and not need more.