Well, there's inspiring genuine love in someone, or causing someone to be attracted to someone else, there's making someone irresistible (not that you would need to worry about that because you are stunning). I think I could be able to soften someone's heart if it's 'too hard' whatever that means. There's also some stuff to do with lust, causing physical desire, infatuation and all that good stuff.
That's all if my research is right of course, but so far I've seen myself cause Helen to love Paris, so I'm hopeful.