A lot of people have scary memories of their parents losing them in the grocery store, but not many can say they were accidentally stranded by a partner at a gas station in the middle of nowhere.
During their drive from New Mexico to Mexico, OP was napping in the back of their converted Honda Element. When OP's boyfriend went in to fill the car with gas, she snuck out to use the bathroom, not thinking to warn him.
"Last summer. We're on a road trip from New Mexico to Mexico. We have a Honda Element converted for living in, so I crawl in the back to nap while he's driving. He stops at a gas station in the desert of Arizona and while he's pumping, I get out to use the bathroom. Come back out, don't see him, and walk around the parking lot to have a look.