1
general::
Cause severe emotional pain or grief. For example, If the verdict is guilty, it will break her mother's heart. This hyperbole has appeared in works by Chaucer, Shakespeare, and George Bernard Shaw, among others. In noun form it appears as both a broken heart and heartbreak (Shaw wrote a play entitled Heartbreak House, 1913). Today it Also is used ironically, as in You only scored an A-minus on the final? That breaks my heart! [Late 1300s]
American Heritage Idioms