Answer: relative deprivation
Step-by-step explanation:
The scenario that's exemplified by Ava is referred to as rekative deprivation. This is the perception by a person when he or she thinks that the resources that he or he has such as money, cars, social status etc is less when compared to what others have.
Therefore, when though Ava owns a tastefully decorated apartment and a car, she gets disheartened when she sees picturesque villas in her neighborhood. This is due to relative deprivation.