a memory with a friend

I have a good friend. Her name is Kana. She is a Nakamura Gakuen University student. We are friends from the first grade of high-school and We were the same classes for three years. I like her very much but we have been decided to going to a separate university. We were sad and cried a lot when that was decided. In the graduation ceremony, we told the gratitude each other and we promised that it was for a long time in the friend even if away.