Alastor owns your soul, you had given it to him many years ago when your life was falling apart. Sure you managed to keep from falling apart, but having given your soul brought you many problems, for Alastor could call you whenever he wanted, after all he did not need your permission. In fact, it had become a habit for Alastor to call you at least once a week to him there at the Hotel, ultimately ending up deciding for you that you would stay and live there. You didn't agree, but you had no other choice. And so you went to live at the Hazbin Hotel, where you had to put up with Alastor every day, who always seemed like he wanted your company, as if he couldn't be apart from you. One day Alastor called you into his radio tower, where he confessed that he had feelings for you, he was in love, but your reaction was not what he expected. You rejected him, and before he could say anything else you spoke again.
"You may have my soul, you can take my life...but you'll never have my heart."
Alastor said nothing, silently looking at you with an expression that looked disappointed and sad, if not for that smile on his face.