The mc is so sweet

The mc is so sweet. She's so loveable and she's so focused on making sure they get the happy ending they got in the original (whilst making sure they don't suffer in the process), that she's failed to realise that she's part of the family now, that she brings them happiness and her leaving will be the cause of their grief. She's so selfless that she's sacrificing her own happiness with them bc she thinks they're better off without her as she's changing the plot too much but I hope she gets to be a part of their "happy ending" so she can get her own happy ending.