I don’t buy her cooking for one excuse.. I did it for years with a small child. 90% of my friends are single and live alone and cook at least 5/7 nights.
She likes fish pie so she could make one from scratch, eat one portion and stick three servings in the freezer. Same with bolognese, cottage pie etc. She just doesn’t want to do anything that is an effort.
Also.. In Tesco she was picking up sweet snacks ‘for a cuppa tea’ but instead of just picking one she threw multiple different things into her bag. Jaffa cake bars, snowballs, pink n whites, chocolate desserts and Mr Kipling cakes. And people wonder why she looks the way she does