it really annoys and upsets me when i see claims that isaac is a victim of grooming by francoise because in the timeline of the series he is 17 years old and she is 47, it seems that people don't think at all when they start analyzing this topic
because when they first meet, they both already act like such weird behavior is normal and familiar to them. It is implied that this dynamic has been fixed between them in the past.
and in the past isaac was her older brother, who had her only chance to become a normie in his hands
and he's her older brother still. she clearly perceives him this way, trusting him with her well-being and allowing herself to depend on him in the same way as in the past
isaac needed to convince her in sufficient detail that he's really alive and remembered their past, so that she relented and lowered the gun. although he remains at the same age at which he died and has regenerated enough for her to remember him
since her youth, francoise aspired to a life with normals and tried to separate herself from her family, which strictly encouraged only ties with outcasts, whereas isaac is quite conservative in this regard, just like their father. their family seems to have been quite private, or it's just isaac is a sociopath..
btw after isaac's death she maintained a good relationship with morticia, who was literally directly involved in this. she wasn't heartbroken: she married donovan and had a baby and looked really happy in her new family. she's not as attached to isaac as he is to her
she also pressured him to shift the focus of the rescue from her to tyler, and he is clearly reluctant to do so until the very end. her new family is more important to her than her old one, and isaac, in turn, does not understand her sacrifice for the sake of someone else. in his paradigm, they are the only thing that matters to each other
in the finale isaac talks about francoise as the only person he really loved, while francoise just sacrificed her life a minute earlier thinking about her son, not isaac.
she definitely wasn't the one who groomed her sibling