When they were six years old, they met; when they were thirteen years old, they knew each other; when they were twenty years old, they fell in love; when they were twenty-seven years old, they met each other.
"The memory of a fish is only seven seconds, but I have missed you for three and seven years. You said it would be great if I were a fish... In all these years, haven't you ever felt sorry for my persistence for a moment?"
"It's been seven years, long time no see."