He wanted to be close
Her dog probably didn’t mind that she cut her walk short and went home because he was only interested in the animal in the first place. He kept bumping her pocket with his nose as they made their way home, almost knocking her over several times because he wanted to be so close to her.
Maternal instinct
Lily questioned why her male dog, who was acting in an oddly maternal manner, would be showing such interest in the animal. Other than the animals they had in the forest, her dog had never interacted with other animals. They occasionally ran into another dog owner, but Sam was never interested.