Well Gunner is a male and the new puppy is female, they thought things might work out better that way. Needless to say Gunner gets mad when the pup tries to take his toys, just really don't seem like he wants him there, I guess is the best way to put it. They are trying to give both dogs equal attention. I'm sure he's really jelous (however you spell it) of Memphis. He don't really like other dogs, but he has one friend that he has known since she was a pup and they get along great. Any thing else you need to know? Thans Aly!