The lyrics “you were the best but you were the worst” encapsulate the complex and often contradictory nature of love and relationships. They acknowledge the highs and lows, the joys and sorrows that can coexist within a single connection.
The line is often used to describe a relationship that was both passionate and tumultuous. The speaker remembers the good times with fondness, but they also acknowledge the pain and hurt that was inflicted. This can be a difficult and confusing experience, as the speaker is left to grapple with the conflicting emotions that they feel.