Emotion

The speaker is grieving a relationship that has ended, but the pain is still present. They miss the other person and feel especially alone because that person is now with someone else. The repeated plea to come home shows longing and hope, even as the speaker describes being overwhelmed by sadness.

“Tears on my pillow” is a simple image of crying in private. “I’ll cry me a river” is an exaggeration meaning the speaker expects to cry a great deal; the river leading to the other person’s “ocean” makes the sadness feel vast. “Taken me over” suggests that emotion has become difficult to control, while “fall apart” means losing the ability to hide one’s distress.

The lyrics present the speaker’s feelings intensely, but they do not tell us whether the relationship could be repaired. Saying there would be “nobody left in this world” to offer comfort may express how lonely the speaker feels, rather than a literal belief that no one else exists. The song can therefore be heard both as a sincere appeal to a lost partner and as an emotional portrait of heartbreak at its most overwhelming.