Harry Potter and Ron Weasley have been out of the country for ten years to work. They originally promised that they'd only be gone for two months. Two months turned into six, six months tuned into a year, a year turned into ten years. They lost track of time. Hermione Granger had owled them every week in the first two months, soon when they didn't reply, it turned to every month, then no contact at all. All the Weasley's were greatly upset about it, but learned to move on with their lives, accepting that they weren't coming back. Well, they were into a big surprise.
Disclaimer: I don't own Harry Potter. JK Rowling does.