In Part 1 of two, Ruthie keeps a secret about a fellow student from her parents, and Matt (Barry Watson) encounters an ex-girlfriend on a flight to Glen Oak. Elsewhere, Lucy sets out to discover why Roxanne is suddenly too busy to hang out with her, and Martin learns that his baseball teammates think he's having sex with Cecilia. Carlos: Carlos Ponce. Simon: David Gallagher. Jeffrey: James Henrie. Heather: Andrea Ferrell. Sarah: Sarah Danielle Madison.