What does the song it must have been love by roxette mean?

"It Must Have Been Love" by Roxette explores the bittersweet nature of love and heartbreak. The song reflects on a relationship that was once filled with passion and joy but ultimately ended, leaving a sense of longing and nostalgia. The lyrics convey the idea that, despite the pain of separation, the love shared was real and meaningful, capturing the complexity of emotional connections. Overall, it highlights the enduring memories of love, even when circumstances change.