Jealous pets can be a nuisance. They often won't let anyone – people or other pets – get near you. They won't let you and your significant other get close, no hugs or pecks on the cheek. They may whine, bark or growl if someone gets near you.

Jealous pets can become less jealous with some behavioral conditioning and positive reinforcement. First, make sure that your pet has a space of his own, a crate or his own bed. Teach him to feel comfortable and safe in that place and to go there on command. If he's being jealous and making a nuisance of himself, give him the command to go to his bed or crate.

Have your significant other, or whoever else your pet is jealous of, spend time with your pet alone. This should be one-on-one time when you're not around and can include a walk, some playtime, or a good brushing. Also, have that person take over your pet's daily feeding. With time, your pet should learn to spread his love and loyalty a bit more evenly.