HELP!! Bf searched “obsessed with sisters feet”

I have been with my bf for 4 years and he has a big foot fetish, and only searches porn related to feet and huge asses,

being super insecure with my body and feet

(I have abnormal looking feet so I’m super insecure about them because of his fetish) ; I looked at his google history under video search. A few months BEFORE dating, he searched obsessed with sister feet videos.

I am sick to my stomach because he has a sister 11 years younger than him.

Yes, I confronted him about it and straight up asked if he is obsessed with HIS sisters feet, he looked a little disgusted and said no, he just liked to search several different things because he was tired of the usual things he looked at, claimed he’s seen every porn video on the internet. (Related searches I mean)

Is this a huge red flag ?? Keep in mind he is a super respectful man, he comes from Iran, where men/women don’t have sex until marriage, he lost his virginity with me after moving to America 7 years ago. Everything about him is perfect! But this still crawls in the back of my mind. Every time they FaceTime, I get sick to my stomach. I noticed he never gets a boner while calling, guess that’s a good sign but still 🥵🥵 NEED ADVICE PLEASE