Not a silly question. Depending on how long you plan on staying, there is so much to do. Besides the usual sights of Los Angeles, going south, you could spend 2 days in the San Diego area. Going north along the coast is a beautiful drive, go slow and take 2 days and drive to San Francisco stopping in San Luis Obispo...wine tasting, Hearst Castle and then on to San Francisco. Just the two of you, could be really romantic...go to Carmel and Monterey Bay, stay in a B&B.
Native Californian (61 years) and still discovering wonderful things about our state.