The gal who broke his smile

There's been some stories about this man. Many enough to give even the bravest of men nightmares. But there is one person who isn't afraid of his craziness. Her name is Alice Fenton. She lost a part of her when her twin brother was murdered, unfortunately that part was her sanity. The joker likes her as soon as she's brought into Arkham. Was it love at first sight? Or maybe more?