Réponse :
1) I can associate it with one of Shakespeare's famous plays, yes. The name of that play is called "Romeo and Juliette" dating from 1595.
2) Yes, she writed a song with some inspiration of this play, because in Romeo and Juliette, the boy named Romeo falled in love of a girl named Juliette. She falled in love for Romeo too. And in the story, they can't
love each other because their different family are "rivals" and so, their parents don't let them love each other.
J'espère que ça t'aura aidé. Je te souhaite une bonne soirée à toi et bonne chance pour le reste !