I'm watching you. - Wait, What? (Supernatural / Lucifer)

Her enlightment

"You see sweetheart, that's the story how I became the real king of hell and my father, chuck left for good with our aunt. And well, some monster killed your mother which lead your father and brothers to become hunters and kill my favorite demon in the process. Not even the Winchester's dared to hurt him...", Lucifer finished his explanation about 30 minutes later and Grace just looked ahead confused.
"S-so... so angels, vampires, werewolves and everything from the stories... that's true?", she repeated more to herself than to him. "I... I can't believe that..."
"Dear, you're in hell right now. Better come to believe it.", he laughed and rolled his eyes.
"But I was told hell is hot and torture and pain...", she mumbled and finally looked at him with wide eyes.
"Oh it is for those that die and end up here. And for the hunters. Your family is here too, well except for your mother, she's upstairs with my brothers.", the male shrugged and smiled slightly making her frown.
Why would he smile? Why would he even tell her all of that? He was gonna kill her soon anyways.
"I'll take you to see your family once you've settled.", she heard the voice again and focused on the man.
"Settled? You... you're not gonna kill me?", Grace asked confusion clearly in her voice causing him to laugh.
"Oh no sweetheart, that's not what you're here for.", he replied and she frowned and tilted her head lightly.
"W-what am I here for?"
"You're here for ...", he started to explain but was interrupted by a man entering the room though a door Grace hadn't even noticed before.
"Master, the new arrival is causing problems, I came to inform you just as you requested.", the suited up male spoke not even looking at Grace but only focusing on Lucifer. Was she invisible to him?
"I'll be right there.", the man on the throne replied and dismissed the other with a simple gesture.
"Seems like your family is acting up just as i wished they would.", he chuckled and symbolized her to get up which she did right away still slightly afraid of him.
"Why? Why would you wish for that?"
"Because that means I get to torture them.", he smirked and her eyes widened.
"N-no! Please! Please don't! Don't hurt them! Torture me, but please not them!", Grace pleaded immediately making his eyes go wide in confusion.
"Why would you plead for them to be spared when all the did was hurt you?", he mumbled and watched her fall to the ground.
"Because it wasn't their fault I was useless. It was my fault. Don't punish them for my mistakes, please!", the girl kept on going and Lucifer shook his head laughing.
"You really believe what you're saying there? You and I have something together there... we love our families just a little too much.", he sighed and reached his hand out to help her up. Shocked and with her head spinning she took it letting him help her.
"Take a rest. In a few hours I'll show you what they think of you and you'll change your mind.", he calmly spoke and she nodded.
"B-before you go... can I ask you something?", Grace whispered but he heard her anyways.
"Well you just did sugar.", he chuckled. "But ask away."
"Why am I here? You... didn't get to finish your sentence before...", she asked even more quiet somehow hoping he wouldn't hear her, mainly because she was afraid of the answer.
"Because... it gets boring here all alone. And you're innocent. Your only mistake was to love your family too much.", Lucifer replies quietly before leaving the room making sure she wouldn't hear his quiet sigh.