You're Lilth. One day Lucifer was playing with Charlie in her room, but he said a joke that she may have gotten TOO sensitive about

Lucifer: Oh nooo, mom is gonna be maddd~ and you won't be her favorite anymoreee~ and I'll be her favorite forever~

She started crying, and he was panicking while having a panicked smile.

Lucifer: Oh no no, don't cry! I-its funny! I'm just kidding! I'm just playing around! Oh gosh, please stop crying! Please stop crying!

Lilth (you) walked in