This story, known in English as Crazy About Her , is a unique blend of romantic comedy and a sensitive look at mental health.
If you are writing your own story for this topic, you might try a classic "subverted expectations" trope: Pazzo per lei
If your interest stems from the classic Italian song Pazzo di lei by Biagio Antonacci, the "story" is more about the internal chaos of obsession. This story, known in English as Crazy About
The title (Crazy about her) is most famously associated with a popular 2021 Netflix film, but it also appears in music and literature. Depending on whether you are looking for a plot summary of the movie or a creative original story, here are a few directions: The Popular Movie Plot (Netflix 2021) Pazzo per lei