Mean as hell, and motivated entirely from her just being miserable herself and wanting to spread that feeling, but... I'm kinda on Rurika's side. This is the exact sort of thing Aiko needs to hear, and you can't exactly sugarcoat "you're being way too attached to something for your own good"...
Glad that this confirms sequels, because there are a lot of these I wanted to see continued and this was one of them, but dammit Mark. No chasing after your stepmom! 😣