See I think it's really telling about her mindset towards her body. When I put on loads of weight a few years ago I kept stuffing myself into too small jeans because I was in denial. When I then decided to properly lose weight I realised I still needed something to wear in the meantime that actually fit me. So you can work on yourself while accepting your current self but IMO that means not punishing your bigger body by wearing clothes that literally hurt you. The fact that she is doing this all the time and is also claiming that she isn't trying to lose weight to me seems to smack of some really deep self loathing that she just won't admit to. It's also boring, like just lose some weight or buy some clothes that fit, it's not that hard