My rough translation of the dialogue:
Zoro: "Yo, you went shopping last week right? Why didn't you get me any chocolate?"
Perona: "There weren't any available, so deal with it. And I went all over town from shop to shop for you, so you should be thanking me. Why don't you just buy some yourself?"
Zoro: "It's not that easy! It takes frickin' ages just to go to the smallest town around here!"
Zoro and Perona repeatedly argued as they walked along....