"Oh, no, it's fine. Don't worry about it." It'll probably just become a monstrosity of mould at the back of his fridge before he remembered about it.
"Thanks for having me." He wasn't welcome in most places outside American borders and just to be able to enjoy amicable company in peace and quiet was a real blessing.
"People aren't as hospitable these days. I don't blame them, but it's nice to have a change."