YOU SAID:
I have a crush on a nice boy.
INTO JAPANESE
私はいい子に恋をしている。
BACK INTO ENGLISH
I am in love with a good boy.
INTO JAPANESE
私はいい子が大好きです。
BACK INTO ENGLISH
I love good boys.
INTO JAPANESE
私はいい子が大好きです。
BACK INTO ENGLISH
I love good boys.
That didn't even make that much sense in English.