Real Housewives Star Dr. Paul Nassif Loses Father and Marriage

Nassif just released an emotional statement to TMZ ... saying, "Adrienne and I have tried very hard to make our marriage work, but this is the best course for both of us."

"This is a difficult time for our family and my prime focus is to ensure our boys are well and happy."

He continues ... "In addition, sadly I just lost my father yesterday -- a man who taught me how to be a man. I deeply appreciate the outpouring of support from family, friends and patients. We will get through this."