There's a channel called "The Ankle" - his real name is Jordan. He's not "Jordy" from olordyitsjordy, though; it's completely different reactor. Anyway, he's been watching and reacting to Amber's vlogs, starting from the very beginning of Amber's channel. That's why you find so many people in Amber's comments section recently saying "Hi Goo and Ankle! (Goo is the rottweiler Jordan rescued). Anyway, he's recently entered the beginning of the Destiny Era, and in a starting weight watchers type of video, Amber talks about being 290lbs at 11 and 420lbs at 16. She talks about teachers and people in the foster system paying for her to do Weight Watchers, but she never bothered to take it seriously because SHE DIDN'T FEEL THE NEED TO LOSE WEIGHT. Having this mentality - at ANY age - about being 420lbs is completely fucked, and gives a clear indicator about how current day Amber feels about weight loss.
I've always suspected that her channel started as yet another way to manipulate and gaslight the people in her real life (who were completely financially supporting her absolute gluttony) into believing that Amber was trying to better herself. She'd cry about her "mentulz" if any of them were critical of the shit treatment she was dishing out, and do long monologues about the diets she was going to start if she sensed that her host organisms were on to her parasitic ways. And they all fell for it because they mistakenly assumed that Amber's thoughts, feelings. and goals would be like theirs (people tend to assume that others think the way they do and would react the way they would - especially if they haven't encountered predatory people in the past). Most people wouldn't humiliate themselves on YouTube for potentially millions to see if they weren't actually serious about losing weight, right? So in their minds, why would Amber do this?
And then sometime during or just after the Destiny era, she started making serious bank. While I think that she was still using her channel to manipulate the people in her orbit, I think the priority shifted towards manipulating people into continuing to tune in just a little longer, because the results you want to see are totes gonna happen.... just keep watching. She's even admitted recently during vlogmas that she DOESN'T CARE about producing content of any value, because her audience doesn't directly pay money to watch her (she's worthless trash doing nothing to benefit anyone, nor truly responsible for anyone, so she doesn't understand the value and preciousness of time). It's all fake and nothing she says has anything to do with how she actually feels about weight loss. It's also why it comes across as so disjointed at times.
So then, given the opportunity to be with someone who wants her be as gluttonous as she can be would be an absolute dream for Amber. She wouldn't have to waste energy pretending to give a shit about her weight and health. The only pesky problem is that her audience won't accept it, because Amber's been lying to them about wanting to lose weight for the last 11 years. That's also why she produced virtually no content over the last few months. Then once the honeymoon period ended, Amber had to start cranking out shit about her "mentulz" - probably because the manipulations against Emily weren't working anymore (and also because she had to ramp up for vlogmas). So now we get these ridiculous videos of Amber being absolutely miserable, while trying to manipulate us into not believing our lying eyes, and that Emily is actually so wonderful and suportive of Amber losing weight (while Amber gains like crazy) and is not a feeder at all! She also needs the plausible deniability for the inevitable point in the future when Emily chews off her own leg to escape (or dumps Amber in the most humiliating manner), so Amber can do her vicious smear campaign against Emily for YT bucks.