Crushes<span> have more to </span>do<span> with fantasy than with reality, and they tell much more </span>about<span> the admirer than the admired. It's because they usually prove unrealistic that in a relatively short time they soon wear off. But it is because of the </span>idealization<span> that </span>crushes<span> have such momentary power.</span>
The author argues that crushes, romantic or identity, involve the projection of idealized traits that a person values and desires onto another person (i.e. the crush).
Explanation:
This simply means that the author connects it with the momentary power, and this should be the answer to the article that you are reading.