Am I just being insecure?

Hi guys so my boyfriend and I have been dating for over a year and a half. In the past 6 months or so, he’s been more obvious about what kind of women he finds attractive, celebrities or otherwise, and they all look waaaay different than me. I am a bigger girl, and I’ve always owned my body and rocked my shit, but it seems like all the celebrities he likes are skinny, blonde and short. I am none of those things lol.

He says he loves me every day, he says I’m his soulmate, wants to marry me - all that good stuff. I brought it up to him and he’s like yeah but they’re not you. But I can’t help but feeling like maybe he settled for me and isn’t actually attracted to me? Idk if that makes sense but it’s just bothering the hell out of me. Am I just insecure? Is this normal for guys?