When The Joker took an interest in young Pamela Isley just after her transformation at Woodrue's hands, it seemed she was destined to be under his thrall forever. Dr. Harleen F. Quinzel is just another overly eager psychiatrist with the misguided notion that they stand a chance against Pamela's complex psyche. In Arkham Asylum, nothing ever changes. Right? Slow burn Harley/Ivy.