mmmm... so you and your guests can breathe happy. ♪ ♪ if you don't know the name nicholas sparks, chances are you've seen or heard of his novels that have inspired the movies that have made some of you laugh and cry. >> mostly cry. he's the romance novelist who shocked fans with the news that he and his wife of 25 years are separating. especially since she's the inspiration behind so many of his best-sellers. here now abc's juju chang. >> reporter: he's the man who made us believe love can last forever. but nicolas sparks, the author behind stories like "the notebook," "dear john" and "a walk to remember" announcing his real-life marriage doesn't have