3rd row headrest removal

2022 Highlander XLE. Not sure how my wife managed to accomplish this. But the 3rd row (Left) seatbelt is wrapped around the opposite side (Right) headrest. The seatbelt is fully extended and locked. Cant figure out how to remove the headrest. Thanks in advance for your help. https://photos.app.goo.gl/BGjcohpfsyYdjNQM6