There is this detail that is kinda forgotten but might explain why Ancia thinks Diana and Blake should be together. Around the first chapters, what Ancia knows is that Blake wants to marry Diana and she just became engaged to him because Count Bellacian did not want to give Diana to Blake. What Ancia might be thinking is that since Diana is Blake's "first love", there is a chance that he will realize that Diana is indeed his first love, so she will just distanced herself quietly away from the picture. Plus of course the detail that she thinks Diana is the one who can cure Blake's curse and they needed to be together a lot of times for the power of light to take effect and I think also the power of love too since as what Ancia said before, in the novel, they did the "do" when Blake's curse got broken.
There is this detail that is kinda forgotten but might explain why Ancia thinks Diana and Blake should be together. Around the first chapters, what Ancia knows is that Blake wants to marry Diana and she just became engaged to him because Count Bellacian did not want to give Diana to Blake. What Ancia might be thinking is that since Diana is Blake's "first love", there is a chance that he will realize that Diana is indeed his first love, so she will just distanced herself quietly away from the picture. Plus of course the detail that she thinks Diana is the one who can cure Blake's curse and they needed to be together a lot of times for the power of light to take effect and I think also the power of love too since as what Ancia said before, in the novel, they did the "do" when Blake's curse got broken.