One of my players off-handedly mentioned the possibility of acquiring a Philter of Love, which has the following description:
Philter of Love
This potent preparation causes a creature who drinks it to fall madly in love with the first creature he or she perceives after consuming it. The drinker’s attitude toward that creature becomes helpful. If a romantic attraction is possible toward the first person viewed, the drinker falls in love with that person. Otherwise, the drinker’s love is a platonic adoration. The effects of the philter are permanent unless removed by a break enchantment, dispel magic, limited wish, miracle, remove curse, or wish.
Another player is a cleric of Shelyn, the goddess of art, beauty, love, and music. In the unlikely event that the PCs follow up on the idea of getting a Philter of Love, would Shelyn be displeased if her cleric went along with it?
Some sources describe her as the goddess of love "in all its forms", which sort of suggests that she might be okay with it. On the other hand, the fact that a Philter of Love can be undone by magic (and Remove Curse at that) makes me think that it doesn't count as "real love" as far as Shelyn is concerned.
Are there any sources that show Shelyn having feelings one way or another about relationships built on magical influence, such as Philters of Love, charm person, etc.? How she feels about relationships built on dishonesty (e.g., a poor street rat claiming to be a noble to woo a princess) might also be relevant.