I have some health problems but I have weeks on end when I manage ok. 3 school age DC. We have a teenage babysitter to help if needed if I have a flare up. DH cannot help - profession where he can’t take time off without lots of notice.
DH and I were talking about a day trip to the beach and he said we will have to take babysitter. I asked why, and he said that I’m not well enough to run around with the DC on the beach (alas, probably true) nor can he (he has a few health issues, but he goes running for fitness).
YABU- DH was just trying to help, bringing in help so you didn’t have to do anything. You’re lucky
YANBU - it would be so awkward, paying a teenage babysitter for hours to be squeezed on the backseat with your kids and then run around on the beach in a cute swimsuit and you look awful due to your illness as your husband thinks you’re incapable of looking after your own kids alonee, even when he’s there.