“Oooooh, Mistaaah Jaaaaaaaaaaaaaaaaaaaaaay.” A psychiatrist who falls for the patient is a classic trope. For whatever reason, Harley's completely head over heels for The Joker, and the two have been inseparable. One thing's for sure: With Harley’s thick Brooklyn accent and The Joker’s maniacal faux-British intonation, we’d hate to be in the neighboring hotel room on their honeymoon night.