The quote from Michael Lewis's "The Undoing Project" suggests that marriage involves a deliberate choice to view one's partner in a way that diverges from reality, especially in how they compare to others. This implies that love often involves a degree of subjective adjustment, where perception is not entirely grounded in objective truth but is shaped by personal sentiments and connections.

This perspective challenges conventional views on marriage, presenting it as a complex arrangement where partners choose to overlook certain flaws or differences. In doing so, it highlights the nuanced nature of relationships, and how our perceptions can be colored by affection and commitment, ultimately illustrating the intricate dynamics of human bonding.