Lyric discussion by williamjacobs 

Cover art for Love Is a Long Road lyrics by Tom Petty & the Heartbreakers

A young woman falls for a man who turns out to be a heroin addict. She supports his attempts to quit but he can't. She leaves in frustration, unable to grasp the death-grip his drug has on him. He knows he blew a really good thing.

[Edit: Left out teh part about the lady being unhappy she was unable to help.]