Can dogs fall in love? A study by Canine Cottages found dogs’ heart rates increased significantly when meeting their favorite dog friend, with rates rising by 116 percent in some cases.

While they may not love like us or have candle-lit dinners like in Lady and the Tramp, they do produce oxytocin, the “love hormone.”

“Dogs sharing essentials like food, water bowls, and sleeping spaces signify a higher level of trust, comfort, and intimacy,” says dog behaviorist Joe Nutkins.

Nutkins says a dog’s body language can also be telling. If their ears go up, appear floppy, or vocalize with light barks, whines, or moaning, it could mean there is a deeper bond between dogs.