In "Love, Rosie," Cecelia Ahern explores the emotional turmoil of unfulfilled dreams and romantic connections. The character reflects on a life that might have been in Boston, expressing deep sadness over missed opportunities. This sentiment underscores the notion that not all destinies are intertwined, and some relationships are simply not meant to be.

The quote illustrates a sense of nostalgia and heartache, as the character grapples with feelings of loss over a future that never materialized. The mention of "deja-vu" conveys a haunting awareness of what could have been, enhancing the theme of longing throughout the narrative.