Gotta disagree with you there. The OG Eris was most definitely making use of her rich privilege to bully someone of lower rank than her. It wasn't Helena's fault that the Crown Prince was obsessed with her, she has no actual say in her life. Imagine being a commoner with a messed up mom, and two members of the Royal Family putting pressure on her. As sad as OG Eris' story is, she still had a family and home to fall back on, while Helena doesn't. You saying OG Eris was right to bully a literal child with no say in what the adults do is like saying a celebrity can send their millions of followers after someone who criticized them in a tweet, that's an abuse of privilege. And also, I feel bad for OG Eris, but I'd much rather a person's heart be broken once than another die otherwise (Helena).
That being said, the situation between MC Eris and Helena is completely different. Helena is now a passive character making things difficult for the MC, being a complete airhead, and then trying to win sympathy points, that's not cool so I don't like her rn. MC doesn't deserve all of her bullshit and is actively tryna cut her off. So I don't like Helena as she is rn.
Setting aside my thoughts on Helena, Eris made a great point a few chapters back when she told that damn CP that if he hated being engaged to her so much then he should have just everything he could to break it off on his own so he can be with Helena. He has no right to get angry at Eris when he's the one being a coward and treated his own fiance like trash. I can imagine why the real Eris wanted to disappear. I would have been so miserable.
As for Helena, gurl, you are also to blame. Even if you didn't know Eris wore the same dress, you are being escorted by her fiance. Her hating you and bullying you (the OG Eris) is very much validated. I don't give a shit about your traumatic past, it doesn't give you a free pass to make another person's life miserable.