 Sandra had a past relationship with David, but when he approaches her again, she makes it clear that she is no longer interested in him and tells him that she won't let him "hurt her" again.David goes home and takes out his frustrations on Jimmy, in a scene where sexual abuse is strongly implied but not shown.It is later revealed that David got Sandra pregnant the previous summer, and when the pathologically jealous Frank found out, he cruelly terminated her pregnancy and mutilated her genitals to make her unattractive to other men.