I have almost every Julian scene somewhere. The one funny thing about him is you can always tell where in his career he did a scene based on the number of tats he has, and the length of his hair.
I got into the AVN convention a few years back on a distributors pass, my brother in law worked for a while in the businesses side of porn and we went together. Naomi Banxxx who I absolutely adore, told me that you can always tell if a girl is into a guy in a scene based on the BJ she gives. She can always fake an orgasm, but she can't fake how she treats a guys dick. Girls that are into the male will treat a cock much differently then a girl who could care less.
Case in point, Harley Dean did a scene with Van Wylde called teach me how to grind. In the beginning of the scene Harley gives Van your standard pornstar half hearted BJ. Then about 8 minutes in, Van flips Harley on her back, and scissors her. I guarantee you within 30 seconds Harley is cumming all over his cock. She tells him "you can make me cum as many times as you want". Its a really hot couple of minutes. She then hops up, and proceeds to worship his cock with her mouth, she completely slows down, and takes him full in the mouth, which she didn't do the first time she blew him. That one move he did completely changed the entire tone of the scene. For the rest of the scene, Harley was worshipping Van. So I completely believe Naomi.
She definitely treats Brandon's dick much differently then Julian's. I don't know if she fucks Brandon better then Julian, but she is definitely more interested in Brandon then Julian, and gives Brandon a much different BJ then Julian. The one poster who said Julian got all buff after that movie, might have a good point. Maybe what she did with Brandon was just the final straw, and they were on their way to breaking up anyway.