((((((((((( hugs )))))))))))
It's hard not to react when people are telling you that you are a failure and your going to loose someone you love very much. Of course you're upset, anyone would be. But people here have given you good advice. I especially like what Glacier had to say. If anyone knows about handling dog issues, it's her! I agree that Josie is very lucky to have you, and it should be possible for you to arrange her contact so everyone stays safe. Every trainer has their own way of working with dogs, maybe there's someone else who can be more helpful out there. Josie needs your love as much as you need hers.
I think I know what you mean by loving a dog more than is natural, I felt like that about my Rosie. I just couldn't get enough of her, I wanted her with me every minute, and I thought of how nice it was gonna be to grow old together. I have two sons, and I called her "my girl" and thought of her as the girl I never had. But we never know what's going to happen. Two days before she had been with me only 3 years, she was hit by a truck and died right in front of me. All I had time for was to pet her, and say goodbye, I love you. My heart still mourns for her, I just can't believe she's gone, but I do my best every day to celebrate our fun times together, and pray I'll see her again some day. Sometimes life sucks. But you have to go on, there will be many wonderful things down the road, too. For me, it was finding Sherman that helped my heart to heal. This is Rosie is at graduation from obedience class: