Julian and Rebecca are married by a judge in this episode. At the time of the ceremony, Julian believed he was a single man, but in reality, Theresa had falsified the annulment papers, meaning their marriage was still legal. That invalidated Julian's wedding to Rebecca, but once it was discovered that Theresa and Julian were never legally married, it meant that he and Rebecca were. But even though Julian and Rebecca's marriage in this episode would technically have been legal, this marriage was never referenced on screen. Not even after it was later on revealed that Theresa was not legally married to Julian.