Connie, so sorry to hear that Tigger is still unwell. You've been under so much stress -- I know you want to take the best care you can of your sweet kitty, but remember you have to take care of yourself too. I'm sure this dry heat hasn't helped any -- I know I have a few puddles of kitty lying around, as they're feeling miserable and listless in this heat. 

Please don't make any big life decisions while you're so stressed. It's too bad your honey isn't being more supportive, but he's probably been feeling a bit neglected, especially if he doesn't understand your strong attachment to Tigger.

Sending hugs for you, and healing purrs from my brood for Tigger.