Your Dog May Get Jealous Even if It Just Imagines You Petting Another Dog. 80% owners say they experience jealousy from their dogs from time to time. Recent research is suggesting that jealousy can be triggered even if the rival for affection and attention is out of sight. "Research has supported what many dog owners firmly believe – dogs exhibit jealous behavior when their human companion interacts with a potential rival," says psychologist Amalia Bastos from the University of Auckland in New Zealand.