I've heard you say no woman commented on your size before and my immediate thought was this. Not because of your length, but if a woman isn't mentioning the fact that you have a fucking 6 inch girth (which will make deepthroating a challenge and be extremely noticeable during sex IME), then it comes down to ego or manipulation.
I have some srs body dysmorphia issues and it used to bother me in the past if I thought it was even possible a woman was with anybody bigger than me ever. Tbh, it bothered me if they didn't say I was "huge". My current gf of 6 years who turned out to be the biggest legit "size queen" I've ever met in my life & has seen plenty of cocks (I didn't know either fact at the time), just said it was "big" and didn't mention my size after that. It was weird to me that she didn't mention it besides that one comment and it hurt my fragile ego back then, but I ignored it. Come to find out, she said seeing how huge my cock was was "one of the best moments of her life" because she loved me but would've hated if I didn't have a huge dick. She didn't tell me because she didn't wanna boost my ego and "didn't wanna seem too into me". She also has some other issues with relationships, so she wasn't really that open about liking much of anything about me at first. She said I was one of maybe 3 of the probably 100 guys she slept with that she actually even admitted was "big" before sex.
Ironically enough, she's been vital to me letting my ego about my body healthily deflate more than ever because she clearly actually loves me for reasons besides my looks or cock lol, which is technically why we had sex in the first place. We had conversations about life for hours on end. So yea, meeting someone who values cock size more than any other woman I've ever met actually helped me care be less hung up about mine being the biggest on the planet. Life's strange, bro.