You know exactly how we feel, I know you had to have taken that hard as well. I know my husband would have done anything to hang on to her longer if she had gotten sick, and it would have been a small fortune.
CoCo's routine had begun to change and she was sleeping a lot more and not eating like she usually did. I think there might have been some subtle signs that she had something we could not see going on. We will never know for sure but we are doing our best to cope with the emptiness we feel. My condolences to you as well for Bear.