Last meeting with my Japanese Conversation Partner

Met for dinner with K. He handed me a gift-wrapped box, saying, "This is a present for you, from my girlfriend." His girlfriend from Japan had visited the week before.

I asked, "Why did she give me a gift?" I hadn't even met her.

K. replied, "She is grateful that you have been my friend."

I was very touched, and said so. It was a bottle of Yazushu, a citrus sake--what a unique and thoughtful gift.