Uchiha Princess - naruto -

Princess Alexis leave her village ,the Uchiha Clan but now she's Back but not by her choice ! She gets put on Team seven.
Sasuke knows he seen this girl multiple of time he just cant remember where from. Princess has some sort of demon inside of her similar to Naruto's.For some reason she makes up an identity , Thats how much she hate her last name not to be included with them.
Why does she want to leave so badly? Why wont she tell Them Who she is ? ROMANCE but My lips are sealed O.O