S3, E14: Summer discovers the truth about Seth. Sandy and Matt (recurring guest star JEFF HEPHNER) encounter an obstacle to their hospital project. Kirsten and Julie take their matchmaking business a little too far, causing Julie to go into hiding. Marissa finally tells Johnny (recurring guest star RYAN DONOWHO) how she truly feels. And Kaitlin (recurring guest star WILLA HOLLAND) wonders which Cooper Johnny really likes.