I swear every 3 days she says she's going to stop eating takeaways, only do home cooking, go to the gym, stop drinking, have a "detox" (which doesn't mean anything anyway). And then goes to a bar the same night, orders dominos hungover, followed by McDonalds in bed. Who do you think you're fooling exactly every time you say this?
If she turned it all around one day and suddenly started eating well, working out, looking after herself - I would actually be quite impressed. She has no willpower and her friends drag her down. It's worrying for her long term health.