Caught Eating Candy Behind Closed Doors

I'm a Daddy in my mid-thirties working at a busy retail store. One day, I broke one of the little rules we have for our household dynamic. You see, there's this big jar full of candy right next to where I work, and while I know better, sometimes it's just too tempting. I found myself sneaking in a piece or two behind closed doors whenever the coast was clear. It wasn't supposed to be an ongoing thing, just one small indiscretion, but it turned into a little secret habit that started to weigh on me. Last week, I got caught red-handed with a fistful of candy wrappers under my desk. She walked in while I was about to sneak another piece and gave me such a disappointed look. It felt like a slap in the face, not just for breaking the rule but for letting down someone who trusts me so much. I've been feeling pretty guilty ever since, knowing that it's going against everything we stand for as a couple.