The context of the following conversation is Addison noticed that she was completely out of food so she went somewhere to get groceries.:
Addison says I had to buy groceries at the last minute..
The friend responds How long has it been since you went shopping?.
Addison responds Half a month. I was completely out of food..
The friend responds How much did you buy the last time?.
Addison responds It was supposed to last me three weeks..
The friend responds Yeah, but you're not on a diet anymore..