So...Elizabeth???

Ok, I enjoyed the movie and have bought it On Demand three times, but I am still unclear about Elizabeth's beef with Henri. Are we to believe that she is just being dramatic as the "author of her own tragedy," or is she just jealous of Henri, or was there some truth to the incestuous relationship speculation (this I doubt)??? You don't have to understand this to enjoy the film, but like any thinking human being, I am curious.

Your thoughts?