"Blue On Blue" is a song by James Blunt from his album "Moon Landing". The song explores the emotions of longing, confusion, and heartbreak that come with a failing relationship. The lyrics convey the narrator's frustration and confusion as to why their partner is distant and appears to have lost interest in the relationship. They question why their partner doesn't want to see them or why they have left them alone. The reference to taking a slow boat to China implies that their partner has deliberately distanced themselves, making it difficult for the narrator to reach out and communicate. The narrator expresses their deep love and desire for their partner, admitting that they want them more than anyone they have ever wanted in their life. They feel a strong connection and love that they never thought they would experience. Despite this, the partner's actions, such as leaving the narrator standing alone or going on a balloon ride to nowhere, leave the narrator feeling helpless and unable to be there for their partner. The repeated refrain of "I'm coming under fire" suggests that the narrator feels under attack or threatened emotionally by the situation. It reflects their struggle to understand why their partner is distant and why their relationship is falling apart. Overall, "Blue On Blue" portrays the feelings of longing, confusion, and frustration that accompany a failing relationship. The song captures the narrator's plea for understanding and their desire to bridge the gap between them and their partner.