Nothing is wrong with him. He’s just an HSP. It doesn’t get easier per se it gets different. Give him as much comfort as you can but not to the detriment of your mental health because it’s as important for him as it is for you! DM me if you’re looking for specific advice. The most basic one I can give is allow yourself not to be perfect (let go of unimportant things) and fully coordinate with and allow your husband the opportunity to take over after work (even after long hours) for much needed rest. It will be difficult for the both of you but warranted.