People like to try and diagnose Chantal because it's hard for them to comprehend she's just a fat, lazy fuck up. These people exist. It's not always an extent of mental retardation or FAS or whatever freak of nature condition exists out there. She isn't a dwarf. She doesn't suffer from FAS. She's not even mentally retarded. She's just dumb - and fat, of course. She has no self-discipline or self-control. Yeah, she might have mental issues but her refusal to get legitimate help means that, at the end of the day, she only fuels those conditions.
In reality, Chantal is an emotionally stunted woman who's pushing 40 and has yet to really carve out a life. She has no career. She has no kids. She has real hobbies. And, if it weren't for Peetz, she'd have no friends.
The real take about Chantal is that, of all the major death-fat players, she is probably the saddest. Amberlynn Reid might not have a conventional career but she's built one on YouTube that allows for a fairly comfortable lifestyle - but beyond that, she is in a relationship (even if her partner is doorstop level intelligent) and she actually does shit. ALR goes out and interacts with the outside world. Chantal's mental state is likely wholly a product of her shitty environment. She barely leaves the house. She doesn't go hang out with friends and as much as she wants to blame the pandemic, even before she and Bibi split, she rarely went out unless it was to binge in her car or do a needless grocery haul.
The Slatons? Okay, Tammy might live a more sorry existence than Chantal but shit, even Tammy found love (however brief) and she's probably legitimately mentally off. Amy is married, with a child on the way, and while her life will never be grand, she'll probably continue being happy - oh and she lost weight.
Jen? She's blissfully on her multi-year Keto journey and has her man tagging along for the ride.
Hungry Fat Chick? She's fully content to just eat herself to death and she'll likely die happier than Chantal has ever been at any moment in her life.
Chantal, though, is not happy. We know she's not happy because she keeps showing us how unhappy she really is. Sure, she'll pretend to be living her best life but the facade eventually cracks, and we get a glimpse of the Real Chantal: the one who looks utterly miserable.
I think that's why, in some ways, Chantal, at least from my perspective, is the most fascinating of the death fats. She so completely hates her life and yet is too goddamn lazy to actually work to improve it. So, it's all make believe - just like most her stories. She's the only death fat, at least at this level, who doesn't seem even marginally happy and satisfied with where life has taken her.
And why should she? I think even Chantal knows, deep down, her only quality is that she is a freak show and she can't embrace that because, for her entire life, Chantal has always wanted to be the skinny popular girl. So we get the cycles and the videos promising changes and how she is really seriously for sure going to lose the weight this time (you just wait). But, as it has been her whole life, if it takes even marginal effort, she won't do it.
So, it takes us back to the original point: she's just a fat, lazy fuck up.