So, who was the woman that saw Peter and Samantha kissing? Peter's wife of course, Laura Bourne.
The two had met during a AA-meeting for a few years ago. Now they were both sober, but the strugle to get there were difficult for Laura. She have had many relaps but now she seamed fine.
After seeing her husbund kissing another woman, Laura was confused, she didn't know how to react. The first instinct told her to drink, but she realized that it would hurt her more than it would hurt Peter and Samantha.
But she told herself one thing, she was going to get revange!