When there is inconsistency in belief and action (such as being violated by someone who is supposed to love you) our mind has to make an adjustment so that thought and action are aligned. So sometimes the adjustment that the mind makes is for the victim to bring her or his behavior in line with the violator, since the violator cannot be controlled by the victim. Our greatest source of survival is to adapt to our environment. So increasing emotional intimacy with a person who is forcing physical intimacy makes sense in our minds. It resolves cognitive dissonance.