The context of the following conversation is After a long day at work, Casey finally  bought food in the store. She has been procrastinating it since last week.:
Casey says I finally got to the store..
The friend responds When did you go?.
Casey responds Well, I was really tired after work, but I went then anyway..
The friend responds Why didn't you just go home?.
Casey responds I'd been putting off shopping all week, so I just had to go..
The friend responds Well, everyone does need to eat..