
She’s def grey. She didn’t hurt any other ppl except for the ones who hurt her in the first timeline. Ppl use other ppl for their own gains all the time even in real life but that doesn’t make them “black” so long as it doesn’t negatively affect the person being use, Aria make sure (most of the time) that the person she uses would also gain something of equivalent and that’s not something a person on a “black” spectrum would do. Manipulation depending on its severity and effects aren’t always on the shade of black.

In this case, I believe that the end justifies the means because by the end everybody (except for those who are evil and wronged Aria in the og timeline) were living just fine or an even better life than they did in the og timeline so which in there made her to be on the spectrum of “black” if no one who shouldn’t be suffering aren’t suffering by the end? I’m genuinely confuse as it’s been long since I’ve read this so I might’ve missed some details on the ending.
This is why I love Aria, she really is a villainess unlike other stories that the main characters were only framed to look like a villainess but is actually a saint and just let things pass but with Aria, she was manipulated to be a real bratty villainess in her 1st life but she was an incompetent villainess and in this life, she decided not to be incompetent anymore. Honestly, I like how she stayed like this up until the end because she was never a black or white person but gray, she knows that and was never ashamed of it. A person like that is fit to be a Queen tbh