Maybe they think he looks like Prince Valiant under that thing...

The cover makes it look like the Demon was moving into romantic lead territory again, but not this time! From 1991, the Demon #17, "The Region Beyond, part II: Beyond Redemption" Written by Alan Grant, pencils by Val Semeiks, inks by Bob Smith.

This was a War of the Gods crossover, and seems to include a major event, perhaps from a different perspective: Circe the Sorceress kills Wonder Woman, by turning her back into lifeless clay. But, what may not have been seen elsewhere: a very cherubic looking Klarion the Witch Boy and Teekl the Death-Stalker go looking for mischief, teleporting to Paradise Island. Avoiding "mother hen" Amazons, Klarion sees Wonder Woman's spirit leaving her mortal remains, and decides she would probably have more fun not in the "Halls of the Dead," but "the Region Beyond." As in, hell.

Meanwhile, in hell, the Demon and Jason Blood still share a body but have switched: Jason controls the Demon, while Etrigan makes for a somewhat deranged looking (and rhyming) Jason. Jason/Demon is chained up and facing a banshee, and is having trouble making the Demon's body work for him; when Wonder Woman arrives. When she is bloodied during the fight, that gets a rise out of the Demon's body, and he responds, first taking down the banshee, planting a big sloppy kiss on Diana! She fights back, but Jason worries eventually the Demon would overpower her, and recites the rhyme to change back into "Jason," putting Etrigan back in the driver's seat. Etrigan/Jason tries to convince Diana they should work together to escape hell, but she's suspicious; then when the Thing-That-Never-Dies arrives and defends her she uses her magic lasso on Etrigan and learns the truth. She leaves him chained up, where he would face the Wild Hunt the next issue; and tries to follow the golden thread of virtue out of hell. Diana tells the Thing to keep at his own virtue, and he may free himself someday.

We saw the golden thread of virtue before, when we looked at the Demon #19 some years back: I assumed Diana escaped hell in her own title, but maybe not.