Waking up one morning five years ago, David Brown found a mystery mobile phone number running through his mind. When it refused to go away, he decided to call it.
It turned out to belong to Michelle Kitson, at the time a 17-year-old student living with her parents more than 60 miles away.
Even the most die-hard romantic would have forgiven her for ignoring a message from a strange man she had never met or heard of before.
But she decided to respond and after a string of text messages, a phone call and a letter the couple met and fell in love.