Second bombshell. >> her story was that kevin and her were having a sexual relationship and it was going on for, probably about 6 to 8 months prior to the homicide. >> i absolutely fell in love with him. >> kevin, sabrina said, promised to the world. and played on her love of three year old hailey. >> he promised me that we were going to have our own house and that i could take over the role for haley, mother figure. and i'd go to college. do everything that i ever wanted to do in life. >> and then, she said, kevin finally convinced her that the only way to realize that picket fence dream was ...