...I thought her husband died. All of that pain and drama was because she was scared of moving overseas or something? She was about to take MC-kun to the bone zone, and her husband was a plane ticket away this entire time?
Seriously, til now I was thinking how good this arc was- in hindsight it was super childish. She went from the strong, mature older sister (and best girl), to a weak-willed, self-destructive, self-absorbed failure of a mother. The lashing out, breakdowns, guilt, and spiraling self-pity suddenly seem entirely out of place; buy a plane ticket and go see your damn husband you pathetic, crazy bitch.