Louie Ramire, the proud possessor of a grand mustache, is an arrogant man who is determined to have his way and not disrupt his pleasures and past-times. It is these traits that made him ill-suited for a family and led to his disastrous marriage to the wife whom he shot and killed. Ramire was set on socializing in cafes after work instead of going home to his wife. On top of this, he spent his days off going fishing instead of enjoying his wife's company. Though independence and socializing are good to a measure, when the sum total adds up to neglect of one's loved ones, it is a rude, uncaring, and unloving behavior. This is what his wife thought.
Her point about Ramire's unloving behavior was emphasized and reinforced by the fact that Ramire spent money on other women, a fact he did not bother to deny. Finally these attitudes led to the violent quarrel in which he shot her. As a prisoner, Ramire is courteous, obedient, respectful and proud of doing a good job well [pity he didn't apply these attitudes toward making a home and marriage]. As a result of his attributes and status as a model prisoner, Ramire is rewarded with an important official post at the prison, a reward that makes him more proud and encourages his self-complacency.