I can't get down with this whole race thing that has been brought into Brandon's narrative. He has never expressed at any point and has been pulled out of thin air. And as I gave stated before, no dude on this show is going to see Taylor walking down the aisle and be worried about her race.
Brandon had her number as far as being here more for the cameras than anything else early on and never got over it. So, he uses any excuse to dip because mentally he's been out since the honeymoon.