I don't think Charlastor is ever happening not because vivzie loves Chaggie too much (if this is her liking it then i'm sorry) but because Alastor is literally her edgy deviant art OC and i doubt he'll ever get paired with anybody, at most you'll get yaoi tease with his rivals.
Ver archivo adjunto 7973937
I firmly believe that Charlie and Alastor having too much chemistry in the hazbin pilot was an accident that vivzie regrets. If she was trying or tried to make them true lovers they would be boring and people would ship both with someone else.