It made me so sad that I've found this thread this morning...
As being a one cat household I can't offer any advice, but be sure you (two-legged and four-legged) are all kept in my prayers...

I know we women often get very emotional about our cats and their needs, sometimes too emtotional for the men (husbands) to bear it...I guess it was just an overreaction with David...and I am glad to read that you've talked about it and came to a solution...
Whatever you've decided about your felines it will be to their best...there are always ups and downs in every relationship, but you can stand every test when you talk about it and find a solution together!!!

Sending best wishes and {{{{{HUGS}}}}} ,

Sabine