foot fetish, F[19] M[20]

so my boyfriend has a foot fetish. the foot fetish in particular isn’t the problem, but i hate that he looks at other woman’s feet. i’ve tried talking to him about it but he really gets offended and just blames it on me. when i tell him that he says that i’m overreacting and stuff like that. i know that even if he’ll stop looking at others feet when i’m around that he’ll still look at others’ feet when i’m not there. also i found him like 2 weeks ago watching porn, there was a tab open. he said that he didn’t know why he watched it and that he’s terribly sorry. then a day later he said that he wanted to learn stuff to use in our sexual life but he didn’t want to admit it because he thought i would say “oh sk our sexual life is boring?” (which i wouldn’t say that). (also we did a test where i turned on porn and his penis didn’t get hard and it only gets hard from me, i don’t know if he can control it or something or that he actually doesn’t get hard by porn). i honestly think it’s an excuse. also i saw him looking at moms feet. also, i can tell that he just lurks, as in he does this thing where idk, he looks around and then lurks at feet and then looks away. i know he really likes my feet but idk how to feel :( i know he probably doesn’t look at feet in a sexual way but idk. also i wouldn’t have a problem with this if i wasn’t insecure about my feet. i have a size 40 and his feet are almost the same in size and he says “as long as mine are bigger”. he also said that he likes that my feet are like “long” and not fat but because he said “as long as mine are bigger” just underlined the fact that size does matter :( i just want him to tell me the truth that size does matter to him and that he would prefer for me to have smaller feet. i don’t know what to do, is he theoretically in the wrong that he looks at stuff which he has a fetish of, or is it my fault because i’m insecure? i can tell that it isn’t like that he looked once accidentally but he does it like how i explained it. i feel like this is a situation which i won’t be able to get out of ever. i also feel really bad that i can’t trust him because of the fact that i found proof of him watching feet porn and now i don’t even know if he watches it still because he’s probably just more clever now? i also send him regular content and he said that he prefers me over porn.