Julia is one of the most intriguin characters i´ve ever read. She is rebel, she is beautiful she is the kind of girl you would love to meet but hate to fall in love with. She agrees with you in your rebel and your crazy matches hers.
At times Orwell makes you trust her, at other times he makes you hate her, she is a true puzzle, if you read it thinkin that she is with the big brother it´d make sense, but the same applies if you expect her to be the good, loving rebel that she seems to be.
It´s a matter of how you wanna see her, for me, she is real, i´d trust her, but i´d definetly keep my distance.