puppy love

Puppy love, also known as a crush, is an informal term for feelings of romantic love, often felt during childhood and early adolescence. It is an infatuation often developed by one's looks and attractiveness at first sight. It is named for its resemblance to the affection that may be felt by a puppy. Some researchers, however, believe it is initiated as a result of the natural development of the brain at the onset of adolescence.