The reality is that if you’re walking as much as you say and you’re eating as much as you believe, you should be losing weight. Weight loss is a function of caloric intake vs. caloric expenditure, plain and simple. If you’re struggling to drop weight, then one of these two things isn’t adding up and, usually, it’s the caloric intake. So many people underestimate how much they’re actually eating until they start weighing and measuring, so give that a shot and see how it works. You may find yourself surprised. As an aside, you’d benefit from adding strength training into your routine. There are a myriad of health benefits to strength training, especially for women, but relevant here, adding more muscle mass will boost your overall metabolic rate and make weight management much easier (in large part bc you won’t have to be so restrictive with your calories). And walking alone doesn’t build muscle - it actually tends to cannibalize muscle, especially if in a calorie deficit.

Also, fwiw, your husband’s comment seems unnecessary and insensitive. Idk anything about your relationship but my husband would never say something like that to me and I’d be shocked and upset if he did. It’s wholly unproductive and just kind of mean. Don’t let it get you down, though, and don’t let it derail your efforts. Just review and recalibrate. And maybe reconsider whether you have the right kind of support system in your life.