Five Hundred Miles From You by Jenny Colgan (Paperback)
Cormac is restless. Just out of the army, he's desperately in need of distraction, and there's precious little of it in Kirrinfief. Maybe three months in London is just what he needs.
As Lissa and Cormac warm to their new lives, emailing back and forth about anything and everything, finally things seem to be falling into place. But each of them feel there's still a piece missing. What - or who - could it be?