Mad About You S02 E23 Up All Night

"Never marry anyone more neurotic than yourself."

Jamie is suffering from sleeplessness because she drank four cuffs of tea full of coffeine while learning for a test. All furious, Jamie urges Paul to spend the night awake with her that leads them to an all-night adventure in the building, from the basement to the rooftop, which ends with a tango together with John Astin, if that's who he really is.