One of my earliest big finds in this research, 10 years ago, was Jesus courted by the Christian Soul, a late 15th century German broadsheet that depicts the relationship in erotic and sadomasochistic terms. This was part of a genre of popular publications. I finally found another example of this.
Surviving Fragments of a German Broadsheet The Courtship of Jesus and the Christian Soul
(c. 1470) shows a similar sequence of actions, also with a combination of images and text.
And here’s the big one.
I wish I could find more of these, but putting those search terms into Google just sends me to religious web sites.