Relationships Post Op? (I'm Pre)

So since making the choice to get banded, the guy I've been with for nearly 7 years has voiced his discontent with the surgery idea. We've discussed it many times and his discontent seemed to have come from insecurity, he thought once I gain some confidence in my looks, I'll be less inclined to stay. (we've been through thick, and thin I wouldn't leave him no matter how much prettier I felt). I explained that away, & he seemed to be more okay with it, mostly because while he loves me now, he wants me to be happy with who I am, so we can be happy.

With my Surgery being on Friday, I've started to get kinda emotional about the changes I have started embracing and the many more I would soon be embracing, & kinda let it out to him that I felt like maybe he wouldn't be attracted to me if I was smaller (no, he's not exactly a chubby chaser, but he's used to me like this; loves me like this) He told me he would be, and he'd love me no matter what.

but I'm scared, he means a lot to me, & it would be devastating for him to find me sexy anymore.

If I'm being real, I think he'll still find me attractive, but all these what-ifs/insecurities are coming up, even if they're not really realistic. He's actually been very helpful, he a gym head himself, and at culinary school, so he's wanting to give me healthy cooking habits and all.

I think this surgery talk brought up both of our insecurities.

So...for all y'all post op...what's changed in your relationships? what remained the same...what didn't you expect; but happened?