When I asked him about it, he replied that he thought it was the right thing to do, since they had paid for plane tickets to come and see him. While I understand the logic to some degree, I've never expected a friend hosting me to cover meals during my stay. If they're cooking at home, fine, but otherwise, I usually split meals out. On some occasions, I'll treat the host as a thank you for letting me stay, but I don't anticipate having my expenses covered. Tell me, what's your take — if you're hosting, are you also treating?