Enitharmon

The fallen emanation of Los, Enitharmon, behaving like a frustrated and restrained housewife, gives a condensed account of the Fall in Night One in her Song of Death:

Hear! I will sing a Song of Death! it is a Song of Vala!
The Fallen Man takes his repose: Urizen sleeps in the porch
Luvah and Vala woke & flew up from the Human Heart
Into the Brain; from thence upon the pillow Vala slumber'd.
And Luvah seiz'd the Horses of Light, & rose into the Chariot of Day
Sweet laughter siezd me in my sleep! silent & close I laughd
For in the visions of Vala I walkd with the mighty Fallen One
I heard his voice among the branches, & among sweet flowers.
(Four Zoas 1:10-16, 305)

In even fewer words The Fall can be described as
Love gone bad!

In a few words during the Fall Enitharmon comported herself as a sort of Vala, but at a certain point she repented and thereafter became a dutiful help to her husband, Los.

In Jerusalem Los makes a creative proposal to Enitharmon, but she replies like this:

be thou assured I never will be thy slave
Let Mans delight be Love; but Womans delight be Pride
In Eden our loves were the same here they are opposite
I have Loves of my own. (J87:15-18 246)

But in this redemptive scene near the end of Night vii we find Los and Enitharmon released from the horror of the past, in the Garden they had forsaken:

Los trembling answerd Now I feel the weight of stern repentance
Tremble not so my Enitharmon at the awful gates
Of thy poor broken Heart I see thee like a shadow withering
As on the outside of Existence but look! behold! take comfort!
Turn inwardly thine Eyes & there behold the Lamb of God
Clothed in Luvahs robes of blood descending to redeem
(FZ7a-87:39-44 369)

And Enitharmon answered:
O Lovely terrible Los wonder of Eternity O Los my defence & guide
Thy works are all my joy.
..... They shall be ransoms for our Souls that we may live.
(Four Zoas 7a 98:16-24; 370)

Here we see how a terribly unhappy wife, becoming reconciled to her husband, sees in him the Lamb of God. Her sorrow turns to joy, and in the end the two become one spirit.