I found much to admire in this new romantic comedy at the Flea Theater by Kate Robin, a writer on “Six Feet Under” and Showtime’s “The Affair.” The two characters are recognizable New York types. Nina (Danielle Slavick), a motor-mouthed neurotic obsessed with irreversible environmental degradation, would be a royal pain if she were not also a charmer. Jesse (Stephen Barker Turner), a laid-off teacher and stay-at-home dad, is a much calmer person who usually finds the bright side of any situation. They meet while watching their children play at the Children’s Museum. Opposites attract. We next see them in the waiting room of an I.C.U. (cf. the title), then at a New Age center in lower Manhattan when a Sandy-like storm hits, and later at the light show at the Children’s Museum. They are both changed for having met the other, but the durability of their relationship is an open question. The dialogue often sparkles and the actors are both appealing. By Flea standards, the production is lavish. The set design by Kyle Chepulis features a large turntable (which frankly seemed unnecessary) and the lighting design by Brian Aldous includes a brief light show worthy of a low-budget production of “The Curious Incident of the Dog in the Night-TIme.” Claudia Brown’s costumes are appropriate. There's also some high-powered piano playing by Or Matias. Jim Simpson’s direction is assured. Some might find the play too talky and tentative, but I found it offbeat and satisfying. Running time: 90 minutes, no intermission.