How did this end? Spoilers I hope

She runs into Erin who tells her that Shane and her son were not getting along before he died so she calls Howie. Shane overhears this and kills Howie. She tells her husband that they were having an affair. Her husband gets drunk and then Shane runs him off the road. She then transfers her husband from the hospital to their home. She sees Shane sneaking around at the house and makes it sound as if she wants Shane to kill her husband. When Shane returns later that night she calls the police and kills Shane. Let me know if you want any more specific information.