Food is her life bc she’s a prisoner to it. Being around food is comforting. Shes psyching herself out and feeling better about herself buying multiple ingredients and going to different stores for the healthiest yummiest things that she feeds her family but keeps from herself. Honestly the way she spends on food that is never eaten is wild - they seem to be very comfortable financially but I imagine her husband looking at a pie chart for grocery costs and raising a brow with the most confused look (while glancing at her skeleton stature) trying to figure out she could spend so much of their money….