They have been messing with the watch option for awhile yet. But it seems to be working now.
On an item that you want to watch, you can create different lists. One for you & one list for your husband and create different named lists (childrens names, hobby names etc....)
In the listing that you want to watch, there is a drop down arrow next to the word "Watch". Click that arrow & a drop down menu will apprear. In the drop down menu you will see "Add to a new list" - in the "Add to a new list" box you will type in whatever you want to call that list (wife, husband etc...)
If you call that list Wife for example, now you can add all your listings you want to watch under Wife by clicking the arrow next to watch and when the drop down window opens you will click on wife (in the drop down menu) to add that item under wife watch list. Your husband can do the same & call his Husband.
Then whenever you want to see your list, just go to your "my Ebay page" (main page) and on the left of the screen you will see (under Lists) where it says "Your Lists". Click on "Your Lists" & you will see the categories you created (Wife - Husband - any other lists you created). Then click on Wife & you will see only the items you are watching. Your husband can click on Husband in the "Your Lists" & only see the watch items that are his items.
