Amy was on the phone with her sister when a delivery driver showed up to the house.
The phone call was in Amy's earbuds and they were continuing their normal conversation when Amy opened up the door to grab the package. As she was grabbing the package from the delivery driver, she told her sister "I love you" and the delivery driver got a little spooked. He thought she was talking to him. Amy said he was cute so it even made things a little more awkward.
She gestured to her earbuds, but the awkwardness was already there. Pro tip: don't answer the door when you're on the phone if you can help it!