I don’t know what to do...

My husband is such a great man. We have such a blessed life and we are very happy together. But the past 2 years he’s gained over 60 pounds. He has a bad habit of eating super unhealthy. He’s been to the doctor and they worry for him because his blood pressure was extremely high. I’ve always been the type to eat healthy and drink water. All my husband drinks is coke. When I even mention to eat healthier or drink water, he gets very angry and says “why can’t I just eat what I want?” or “you never want me happy” or “I’ll die fat and happy”. If he keeps this up he will die at a very early age and I want to live a long happy life with him. We have a beautiful daughter and another one on the way and they need him for years and years to come. I worry for my husband I just want him to make healthier decisions and stay with us for a long time. Any advice? Thank you...