Is Romeo and Juliet about Romeo and his Juliet?

NO! The final quote of the play is as follows:

PRINCE ESCALUS: A glooming peace this morning with it brings.

The sun for sorrow will not show his head.

Go hence, to have more talk of these sad things;

Some shall be pardon'd, and some punished;

For never was a story of more woe

>>>>>>> Than this of Juliet and her Romeo. <<<<<<<

[everyone exits]

Romeo and Juliet is about JULIET AND HER ROMEO