One Day by David Nicholls

YOU CAN LIVE YOUR WHOLE LIFE NOT REALISING THAT WHAT YOU'RE LOOKING FOR IS RIGHT IN FRONT OF YOU.
15th July 1988. Emma and Dexter meet for the first time on the night of their graduation. Tomorrow they must go their separate ways.
So where will they be on this one day next year?
And the year after that? And every year that follows?