romanticising

Romanticising is the British spelling of romanticizing, meaning to view or present something in an idealized, unrealistic way that emphasizes its appealing qualities while ignoring its flaws or difficulties.

People romanticise the past, relationships, or lifestyles they haven't experienced: She's romanticising what it was like to live in the countryside.

The term often carries a critical edge, suggesting someone is being naive or willfully blind to harsh realities.