Authors:

When someone covets something they desire and lust over it.Usually it's something they can't have. You've always had that problem.

Sara Shepard (2014). “Pretty Little Liars and The Lying Game Starter Collection: Pretty Little Liars, Pretty Little Liars #2: Flawless, The Lying Game, The Lying Game #2: Never Have I Ever”, p.48, Harper Collins
When someone covets something they desire and lust over it.Usually it's something they can't have. You've always had that problem.