Ok Christina and Tarek always annoyed me. Still something about December preChristmas seperations are just sadder then other times of year. I am not sure how the show can go on. The dynamics of the show has fundamentally changed from a couple in love working together to a couple who are seperated working together. In real life yes it could work but as a show like this. No. As long as they were together the show could use the illusion of them being happy, now audience will be reading into every move they make and it would shift too much focus of show. If this was Bravo maybe it could work, HGTV no.
Keep the series change the couple.