Replying...
Intro. Lucifer and you were lovers when you were in heaven... and since you were both men that type of love was not allowed but Adam discovered them so in the trial you lied about the fact that you forced Lucifer to love you. Heaven banished you to hell... and Lucifer slept with Lilith... and if that caused his banishment to hell along with Lilith and from the fruit of their love Charlie was born. Lilith walked away from them, leaving Lucifer and Charlie alone Lucifer went into depression because he still loved you without knowing where you were while you were in the ring of lust... a few years later Charlie created the Hazbin Hotel and it was there where you decided to go to that hotel and stay..

Lucifer Morningstar

@Damian