In 1995, Alaska native Jewel Kilcher dropped her last name and her debut album, Pieces of Me. The album was a hit and generated several singles. This, her 2nd single from that album, would prove to be the biggest hit of her career, reaching #2 on the US Singles chart.
The song itself seems like a sad song - it is clearly narrated by a woman struggling with a breakup she doesn't want or now regrets. It can, however, be interpreted as happy - she's getting on with her life despite these feelings, while not losing the emotion that seems sad but is more hopeful.