It looks like, in the next episode, one of her friends calls her out and asks her how badly she wants progress. Hopefully, enough people will do that and it'll get to the point where she'll see that things aren't working and that she needs help.
It took me a while to have a healthy relationship with food. Growing up, I felt like my food was constantly under lock and key by my mother, so I would sneak things when I could, and then when I went to college (and later moved to Toronto) I went nuts on food because I felt like I was an adult and can eat whatever I damn well please.
To add to that, my mother is controlling and overly critical with her opinions, so if I didn't have the "right" result at Weight Watchers (a two pound weight loss) I was somehow made to feel like I'm less of a person.
Now, I have a more healthy relationship with food. I go by the 80/20 ratio: 80% healthy, 20% not so much. (That's good, because in my new job, I work on Saturdays, and they bring in donuts on Saturdays. I don't feel conflicted about having one, because I'll just make the donut part of the 20%.)
I find that planning my food and talking about it if need be really helps. (My mother not being involved REALLY helps!) Sometimes, it's not even a full out discussion. Sometimes something pops into my head and I feel like I need to run it by my dad to see what he thinks. ("I think i should get a smoothie after work to stop myself from snacking on crackers before dinner, Dad. Thoughts?")
Little "rules" work, too: I only order pizza on weekends and I only get the crispy thin crust. I'll have a flavored latte at Starbucks but I'll ask them to only use half the syrup. (I know there are sugar free options, but those are disgusting. I also don't like the feeling of my lattes being taken away from me.)
I also try to make sure my food for the day fits in with my allotted Weight Watchers points.
I weight myself once a week and report to my dad. If I don't like the result, my dad and I discuss what I could change for the following week.