Yes, Pomeranians may become jealous dogs in some situations when they are feeling uncomfortable around strangers or other large size animals.
They may also become possessive about their toys and foods.
Due to this jealous behavior, sometimes they might become aggressive.
They generally get aggressive or feel jealous when they smell new scents or not receiving the owner’s attention or the bond between Pomeranian and owner is threatened or feels a threat to their territory.
