This seems okay? Again, this at least checks off the villainess box, but seems to be oddly focused on teasing the step-relationship more than anything else. At least the ending is going in the appropriate direction, but it still doesn't feel like it does much with the core relationship.
My ratings on the series, from best to worst (with lines between 'enjoyed', 'neutral', and 'disliked'), after revision based on more thought:
1-2, 2-3, 2-4, 6-4, 4-5, 5-2, 6-1, 2-2, 4-1, 5-5, 2-1, 1-4, 3-2 | 4-4, 6-6, 6-5, 4-3, 4-2, 3-1, 6-3, 5-1, 4-6, 2-6, 5-4, 1-5, 3-3, 3-4 | 1-3, 2-5, 3-5, 5-3, 6-2, 1-1