As someone who had an eating disorder for a fairly long period of time, my first impression is that doesn't, although she is looking better in the last year or so than she was before - I don't know if it's because she's gained a bit of weight or just has healthier habits. But she does/has done some things that do ring a bit weird a) the massive amount of baking she was doing for a period, b) she's really into feeding her dad treats/getting things for other people to eat and c) spending massive amounts of money on food/trendy treats out and just taking tiny nibbles of them. I think it's entirely possible she has had an eating disorder (or at least disordered eating) in the past and is now trying to embrace a healthy lifestyle - it would fit with how close she is with her parents, her lack of independence (even moving her bedroom upstairs when her siblings left!), etc. I don't think we will ever know, though.