Help why do i resent my partner over something that clearly isn't his fault

so long story short i watched a series with my partner a while back that simply has a lot of nudity in it and that simply spawns in my head 4 times a week on a good week and i just start not wanting to engage with him or talk to him and basically avoiding him like it's a turn off even though we have a perfect relationship in every aspect el hamdoullah we love each other very deerly idk why this keeps happening i thought it would be over once we finish the show ( i was very uncomfortable watching it mais i pushed through) but i keep remembering how he was staring at naked women bodies and it's really affecting me mentally idk why am upset am very open minded human with very mature mentality ik it sounds immature and it is to be honest i just don't know how to stop it i my self , i don't like it when it happens cuz it be ruining a perfect day for both of us ( also this is the only issue we've ever had in our relationship and am not insecure about my looks or anything so i really don't know why so if someone can give me a good talk on how to fucking move on from this stupied issue cuz it's not that deep mais it's ruining a lot for me i hope u guys understand me ❤)