Was thinking Shiikawa was hitting on Satoko by gaslighting her, sexual harassment and abusing his work status so he could have her back since they both understood what went wrong with their past relationship.
Seems like Shiikawa also is in relationship with younger woman, being back to university when he is 35 himself? That's at about 10 years in between them...
Satoko meeting her past self, from giving encouragement in the bathroom stall to fight, her times in highschool to ease off the steam after breaking up with Shiikawa, then reflecting as all her past by what she experienced with her parents shitty marriage.
Mayuko leaving her mom at first chance she had was the best choice in her life, she was and still is extremely toxic to her daughters and glad she found peace with Tatsurou overseas.
