I've met a few people like that. I think it's about control, the way they get to take people for a ride at the time that gives them the satisfaction. One guy who I knew who's like that, well women liked him because he was very impulsive and emotionally in control. They couldn't get enough of him because although he lied, he was fun and never boring so they brushed the lying part off. Maybe that's part of this guy's charm as well?
Don't cry, don't regret and don't blame
Weak find the whip, willing find freedom
Towards the sun, carry your name
In warm hands you are given
Ask the wind for the way
Uncertainty's gone, your path will unravel
Accept all as it is and do not blame
God or the Devil
~Born to Live - Mavrik~