On Christmas Eve, when others were extremely happy, "I" knocked down a girl. Sadly, after taking her to the hospital, I discovered that I didn't have enough money to pay for the medicine. So I owed two hundred and fifty. The mobile phone numbers were exchanged, but the mobile phones were lost. I thought it would be impossible to return to the customer's home after losing contact, but I never expected to find a job as a delivery boy. When I arrived at the customer's house, it was the girl who opened the door. She thought she had been deceived and told "I" to pay it back the next day if she really wanted to pay it back. But when I went to catch the train that night, the strange thing was that my cell phone was squeezed out, and the misunderstanding deepened. "I" and she met again when I found a new job, and we turned out to be colleagues. What should we do? How can we resolve the misunderstanding?