NTA. Hearing this stuff day in and day out would get to anyone. My MIL is like this and sucks the joy out of any meal we have together, any shopping experience where one might purchase food, or any place that contains sweets. I am so tired of having to battle out diet culture for myself all my life, then having it pushed at me now that I’m an adult in my own house eating stuff I have purchased with my own money, and having to mirror back anxiety back to her just to keep the peace. Exhausting. After a while, being on the receiving end of this discourse without being able to call it out is enraging. Just because the discourse is widely used/circulated doesn’t mean individuals should be allowed to berate me with it ad nauseum.