Treeofpromises Stories

It was a story of a man who fall in love with the girl who saves his life from being bullied. Been close as years past. And collect memories together. As days, months, and years continues, they fall in love to each other. They exchange promises on a tree that they will marry when they get older. But all of a sudden the girl chooses to go with her family abroad, And the guy waits for her even it takes ten years and counting. Will they meet again? Will this story have a happy ending?