Cruz Cauchi

Brittany Cartwright's not closing the door on reuniting with estranged husband Jax Taylor ... but, she has to see serious changes before reconciliation can truly begin. We caught up with Brittany out in Los Angeles on Friday ... and we asked her all about her split with her husband of almost five…

Brittany Cartwright is NOT moving back in with her estranged husband Jax Taylor in the wake of their separation ... contrary to what Jax is suggesting to the media. Sources with direct knowledge tell TMZ ... despite the former "Vanderpump Rules" star's recent claim that he and Brittany are living…