Differently abled folks do it. Republicans do it. Democrats do it. Heterosexuals, homosexuals and bisexuals do it. Catholics, Protestants, Jews, Muslims, Hindus, Buddhists, Agnostics, Atheists, and even Mormons do it.
Computer users do it.
Nice people do it. Somebody you know does it. Maybe you do it. My story might be similar to yours, or perhaps you might relate better to other people's stories about their experiences with abuse. Many abusers and abuse victims do not realize that they are in fact in an abusive situation.