* Romantic: Her infatuation with the charming musician was quickly fading as she realized he was only interested in her looks.
* General: The child's infatuation with dinosaurs was evident in his room full of plastic models and dinosaur-themed toys.
* Negative: His infatuation with gambling led him to lose all his savings.
* Figurative: The city's infatuation with skyscrapers has resulted in a skyline dominated by towering buildings.
Let me know if you'd like more examples!