My dad chooses not to come to my wedding

I'm getting married on the 3rd of October to the love of my life. My parents aren't together anymore, they've been separated for almost 6 years. My dad is refusing to come to my wedding just because my mum is going. Heartbroken isn't the word. They can't put aside their differences for one day to see their daughter get married. I've literally begged my dad to come to my wedding but he got really angry and attacked me. My mum is willing to be civil for a day but he won't have any of it. There's nothing I can say or do go get him to come. I'm just devastated 😔