If you have ever been scared of your boyfriend, read this book.
Abusers appear to be suffering from dissociation (multiple personality). At home, they are intimidating and suffocating monsters - outdoors, they are wonderful, caring, giving, and much-admired pillars of the community. Why this duplicity?
It is only partly premeditated and intended to disguise the abuser's acts. More importantly, it reflects the his inner world, where the victims are nothing but two-dimensional representations, objects, devoid of emotions and needs, or mere extensions of his self. Thus, to the abuser's mind, his quarries do not merit humane treatment, nor do they evoke empathy. Sam Vaknin, author of "Malignant Self Love - Narcissism Revisited".