Contentment is true peace of mind and has absolutely nothing to do with any external pleasure or condition, but rather your attitude.
There is no natural limit to desiring things. You will go on desiring more and more your whole life until you consciously decide "good enough".
Guy 2: "The enemy of 'great' is 'good enough.'
Guy 1: "Maybe, but 'good enough' is also the best friend of 'happiness' "
Jennifer: Really? I heard your ex is already dating....
John: I'm going to go jump off a bridge now.