(noun) Very sincere and difficult emotional problems or stress
"This is a good sign, having a broken heart. It means we have tried for something."
"You can obsess and obsess over how things ended—what you did wrong or could have done differently—but there's not much of a point. It's not like it'll change anything. So really, why worry?"
"To ease another’s heartache is to forget one’s own."
"Expectation is the root of all heartache."