You make a good point and I truly wonder if, because she remembers her 1st life at 17 in every iteration, she always regresses back to her original mental state. She has hope to change her and her sister's future relationship because she remembers their childhood and how much she loves her. She's lived a bunch of lives, but how much does she change as a person if she constantly gets bogged down by her 1st life's memories?
It's an interesting idea and, if the author would just make it a commentary or maybe had her survive more than 3 years after remembering, could be intriguing. Imagine MC shutting down Rufus's obsession because she's lived and loved in other lives. Perhaps she could even notice something is strange with her sister based on other sibling relationships she'd had.
My favorite ML is Owen rn bc he’s the only one that actually cares for MC. Everyone else kinda annoys me and I feel like Rufus is WAYYY to controlling and he just doesn’t give enough UMPH like Owen does. I hope she doesn’t end up with prince julius but she probably will. Too bad tho since Owen is definitely the best one for her. Although she’s lived long enough you’d think she’d change DRASTICALLY but she still is similar to how she was before all quiet and everything