The sense of ownership is one reason why abuse tends to get worse as relationships get more serious. The more history and commitment that develop in the couple, the more the abuser comes to think of his partner as a prized object. Possessiveness is at the core of the abuser's mindset, the spring from which all the other streams spout; on some level he feels that he owns you and therefore has the right to treat you as he sees fit.

Why Does He Do That?: Inside the Minds of Angry and Controlling Men (ed. Penguin, 2003) - ISBN: 9781101220733