d50

so i sold an item on ebay and all the guys shipping info on ebay and paypal give a us address. so when he pays for the item he says oh by the way ship it to my new address witch is in puerto rico. my first thought was this seems a little fishey. but he did pay me infull to my paypal account and he offered to pay the extra if it ends up costing more to ship. he also said if i dont wana ship it that would be fine and would work with me to get his refund. what would you do? i just dont wana ship it out of the us and have the money dissapear out of my paypal.