Hey, op, can I ask you? What do you think the 25 squats every hour is going to achieve, cuz honestly, just reading the title of your post before I read what the problem was made me think, yeah why don't I do this? But, what muscle group is it supposed to Target lift firm, I mean I know the glutes, does it help with tone?
More than likely, your husband's just being eye-rollingly annoyed with a big sigh about this which is ridiculous, but it also depends on context.
By that I mean, have you been known to try lots of different fitness and nutrition and diet and wellness trends in the past?
Have you been known to start many things, Go full tilt into it and then give up? Do you have tons of fitness equipment or kitchen appliances or other gadgets hidden around the house in closets or garage or attic, a testament to interests and trends and fads that you've tried and then given up on? Cuz if that's true, I can understand his annoyance. Also, if you make a big deal out of for instance setting your alarm and saying "oh, it's 12:00 it's time for me to do my 25 squats" no matter where you are, even if you're out buying groceries and you do it in line at the checkout, and he just rolls his eyes because he's embarrassed and annoyed.
Now you never said that you did any of this, and you most likely aren't, but I do know people who have done this hence why some respondents have accused your behavior as being performatory. I'm quite sure you're doing this in a normal way that is meant to improve yourself, I was just throwing the suggestion out there in case this is a recurring theme of frying new things and not completing them, or giving everything full attention for a while that's a bit much, because that really does get to be old behavior quickly.
Aside from that, hey I wish you all the best, good luck and you know what, maybe I'll join you, I do too much sitting because of my job, maybe I should get up and do 25 squats every hour. I'll be thinking of you :-) thanks for inspiring me.