you said three characters beforeYeah, pretty much slept with all characters. The 3 goblins, batbreeder, Erevi, the spider, both giants, both elves, the troll, my sister, the four priestesses, Rosy, the shopkeeper, Victoria, the vampires, and the dragon.
I checked my save file and her Jealousy stat is at 3 and my EvolveQuestProgress (or something like that) is at 5.
What state is Erevi currently in? if she is in bed with a baby that might be blocking it since she needs to be mobile to examine the imp.
Might be worth talking to Erevi as well maybe you missed the cue?