I was pulling a prank on a friend and took her textbook, calculator, and camera from her dorm and was meaning to give it back. But she threatened that she already pressed charges even after I admitted that it was a joke and I was going to give her things back. In the end, I did but then she mentioned other things that she claims was missing from her room, which I had no involvement with. She revealed that she did not press charges to begin with and it's been two months since I returned her things and now she is threatening to press charges. What should I do?