Beware his Blackened heart, a Jelsa fanfiction,

When Jack Frost loses a battle with Pitch his heart becomes inglufed in darkness. He has many affairs with girls before he meets someone like him, Elsa. He kidnapps her from Arendelle and takes her to his kingdom of darkness. There Elsa discovers the mysteries of his past and helps his future. Will he be transformed or will his heart remain a black pit of emptiness forevermore?