That’s your interpretation. I’m choosing to still see it as vampires - basically he’s trapped in a Groundhog Day scenario where he keeps reliving his time with her/him. Because his life is so long, he keeps trying to visualize it differently in his dreams, like when you try to change your dreams in the dream..
Hmmmm I suppose... but this seems to have quite a few dream lab references which makes me think he's resonating to try and see if the other members can make a decision that leads to her not dying... I do still think they're using their dreams/kwangya to try to alter their reality. If he can fix the dream then he can attempt to change it in the real world.