I used to think that he was so mean, because he really didn't love himself. How naive of me! In the end, I realize that he's the only person that he's ever really loved.
He disrespects women, and considers himself superior to them. His objectification of women, makes it easy for him to say the revolting things that come out of his mouth. This is what abuser's do. They reach for the words that they know are most disturbing to women, such as bitch, whore and cunt, often preceded by the word fat. These words assault her humanity, reducing her to an animal, a nonliving object, or a degraded sexual body part. These words carry a force that feels like constant violence, making a woman feel debased and unsafe. Then the next moment he switches gears, confusing her and making her feel like the crazy one, by proclaiming his love and how much he adores her body and wants to make love to her, after he has sufficiently reduced her with his ranting.
"Objectification is a critical reason why an abuser tends to get worse over time. As his conscience adapts to one level of cruelty, he builds to the next. By depersonalizing his partner, the abuser protects himself from the natural human emotions of guilt and empathy, so that he can sleep at night with a clear conscience. He distances himself so far from her humanity that her feelings no longer count, or simply cease to exist. These walls tend to grow over time, so that after a few years in a relationship they reach a point where they feel no more guilt over degrading or threatening their partners than you or I would feel after angrily kicking a stone in the driveway." - Lundy Bancroft, 'Why Does He Do That'.