We laughed and kept saying 'see u soon', but inside we both knew we'd never see each other again.
我们笑着说再见，却深知再见遥遥无期。
Your past, is the future which I can't foresee, your future, is the past that I can't interfere with. Often in the real separation, just know how deep feelings are. Just because can't go back to the past, that goodbye is no longer a teenager.
你的从前，是我无法看清的未来；你的以后，是我无法插手的过去。往往在真正别离时，才知感情多深。只因回头却不是从前，再见已不再是少年 。