Someone who lies almost anything, even the smallest things.
Compulsive lying is when you cannot stop lying, so you lie almost whenever you can.
Stop lying!
An oniomaniac is a person who cannot stop shopping.
A person who lies once is a person that will continue to lie. Chances of him ever stopping lying are slim to none. The most important thing in a relationship is honesty, if you don't have that then you will never be able to trust him ever.
Its all in your head, you can stop lying by telling the truth
A kleptomaniac.
Call the police
You cannot stop someone from being in love with someone else, that is scientificly proven. She might stop liking that person if that person did something horribly bad, but even then that sometimes cannot stop a crush.
An Addict.
No!!
That person who carries the stop sign is a crossing guard who is in charge of a spot where pedestrians cross the road.
Because he's a liar? Just stop talking to anyone like that.