Jax Taylor is receiving mental health treatment in rehab. The ‘Valley’ star – who split from wife Brittany Cartwright, the mother of his three-year-old son Cruz, in February after four years of marriage – has checked in to an in-patient facility for care and support amid a “sensitive time” for the 45 year old. His representative said in a statement: “Jax has always been candid about his mental health struggles, especially during the past few months on his podcast. “He has made the decision to seek in-patient treatment. This is a particularly sensitive time for him and his family. They ask for …