If something unfortunate were to happen to your spouse in the game, can you put on the amulat and go get a new one ??

Are you on Skooma?

bump. good question I'd like the know the answer as well

I don't think you can..I wish.

Shes immortal !!!!! And now Iv'e lost my poor Dog ! Those swingin axe blades turned poor spike into kibbles and bits, but she just bounced around in there like some pin ball in a machine gone mad ? I turned off the axes and she got up and started talkin about how reackless she was when she was younger ? Nord women !! What are ya gonna do ??

The game does not allow you to remarry. If you have a PC however, there are commands you can enter to allow yourself to remarry.

Check this out: http://elderscrolls.wikia.com/wiki/Marriage