Dogs do know when you love them. Scientific research shows that dogs and humans form a special bond through oxytocin, the "love hormone," which rises in both the dog and the human during interaction like eye contact, petting, and playing. Dogs perceive love through their owner's body language, tone of voice, and actions like providing care, affection, and attention. Their behavior, such as wagging tails, leaning against you, making eye contact, and seeking physical closeness, are clear signs they recognize and feel loved. Dogs experience love not exactly like humans but as a deep emotional connection and trust that reassure their safety and belonging in the family pack.

In summary, dogs understand love through the consistent loving energy and behaviors of their humans, confirmed by biochemical bonding and intuitive emotional attunement. They both know you love them and reciprocate love in their affectionate ways.