Ask Amy: Husband sends marriage to the dogs

Dear Amy: Shortly after my husband and I began dating, he bought a large-breed puppy. He took the dog everywhere he went. We then moved in together, we got another small, mixed-breed dog that we hoped would keep the large dog busy, since he was always demanding my husband’s attention.
One evening, the large dog snapped at me (he was 6 years old at this point). My husband was very upset, and he was going to put him down, for fear that he had “turned.”
I begged him not to. About