Love? Get a dog. /s
My charming and delightful wife of almost 30 years said to me just the other day that I pay more attention to, and give more affection to our 12 year old labradoodle.
Speaking when I should've just kept my big mouth shut, I told her that the dog at least initiates love and affection when I walk in the door from work and is waiting for me with his tail wagging, only to roll over all four paws up in the air begging me to rub his belly (a sign your dog loves and trusts you.)
You can bet your last dollar she still isn't all four up in the air, waiting for me to rub her belly.