How did John Thornton and Buck express their love for each other?

John Thornton and Buck expressed their love for each other through deep mutual trust and loyalty. Thornton showed his affection by treating Buck with kindness, respect, and care, providing him with a sense of security that he had not experienced before. In return, Buck demonstrated his love by fiercely protecting Thornton and willingly following him, displaying unwavering dedication and companionship. Their bond exemplified a profound connection rooted in understanding and shared experiences in the wilderness.