I shall tell the world the nature of that food which confines Proserpina beneath the huge weight of earth, the bond of love that unites her to the gloomy king of night, and the defilement she suffered, such that her mother would not call her back.
(I needed to soothe my travel anxiety, so I painted the kiss scene from Persephone’s dream in Anthesteria. ^^)
And that quote is perfect - I hadn't heard of the Pharsalia, and I love the idea that Demeter would not call Persephone back home because of 'defilement.' I think it fits with your Demeter's ideas concerns about romance very well (which is a very complicated issue for her, which I also love).
Pharsalia is a Roman epic poem about the civil war between Julius Caesar and Pompey the Great. The passage I quoted comes from a scene where a witch is about to resurrect a dead person and calls upon the deities of the Underworld. Here Persephone (or Proserpina) is even said to dislike her mother, which is very unusual and deviates from the Greek Homeric Hymn to Demeter where she loves her mother dearly.
Yes, romance is a bit of a complicated issue for my Demeter. She expects Persephone to one day have children, but she doesn't want her to get married since she then would have to obey a husband and live in his house.