Christina Haack knows a thing or two about the challenges of navigating a public split, so she has advice for fellow HGTV stars Jen Hatmaker and Brandon Hatmaker amid their divorce drama. "My publicist [and] my best friend is right here [and] what she taught me at the beginning is, you got you have to ignore it," Haack, 42, exclusively told Us Weekly on Wednesday, October 1, of the wisdom she's learned after experiencing three public divorces.