This was me a few years back. When food got low, I lived off of microwave popcorn, saltine crackers, long forgotten cans of soup, and whatever was left in the freezer.

I still don't know what the deal was. Certainly the time and money to go out and get food wasn't worth it to me either. The only reason I snapped out of that mindset was I came to hate looking for snacks. My dislike of scrounging started to outweigh my dislike of shopping.