Sounds somewhat like a scam. Paypal usually won't release the money to the seller unless you leave good feedback or a certain amount of time goes by. Maybe this guy was hoping for the time to go by so Paypal would release the funds.
One of the main things I look at on Ebay is feedback score and how many things they've sold. How many did this guy have? I've been purchasing off Ebay for over ten years and only had a few issues when I was the seller. Some buyers like to back out and it's a pain in the rear. Sad thing is, this only happened to me while trying to sell depth finders I had.