Christina Haack is smitten with new beau Joshua Hall — and she wants everyone to know. The couple took a trip south of the border to celebrate Haack’s birthday, as the “Christina on the Coast” star turns 38 on Friday. Photographers snapped the HGTV fave in various beat-the-heat looks, including a blue babydoll dress and a pink … Continue reading Christina Haack celebrating birthday in Tulum with new man Joshua Hall