The Knights Tale Part II

In The Knight's Tale Part II, the dictation surrounding love is incredibly dark. Every aspect of love seems to be upsetting and horrid until the man decided there may be hope for him to fight for Emily. There are words like "woe", "death", "hollow", "cold", "alone", "moan", and "sickness"; that are reiterated throughout part 2. He looks to be a different person until Emily is there, and that brings up the overarching question of what Chaucer is saying about love? If he simply could not be happy until there seemed to be even the slightest glimmer of hope to see his beloved (even though he doesn't know her!!!), then what is that saying about love? That it must be an overpowering, overbearing, and overwhelming love?