Joe's wife, reporting for duty! Bex is typically not a very friendly person, which is ironic when Joe's social nature is considered, but I am more than sure that she put in a lot of effort getting to know Jo in the past. I know Joe and Bex were split for a while, with his move to New York and all of that, so she could have whatever feelings in regard to that you'd like! Otherwise, I know Bex would do her best to be amiable, and it's possible they might even be good friends.