Eric noticed how cheerful Sam was for a Sunday morning, he thought about having his talk with her another time but he gave up on the idea the moment he remembered he had to be back home the next day, he had to meet with his lawyer to discuss a few issues with his will and doing it in Desmond's place could cause a few problems, so he decided to get his talk with Sam over with and called her back just as she was about leaving.
"Have a seat, Sam, I have a few questions I would like to ask you regarding your relationship with Desmond and I also want to hear about your relationship with Diane."
Eric watched as Sam stood still, he had expected her to react this way and if she didn't and tried faking ignorance he had the perfect questions to keep her mouth shut.