I don't care how many times I told my X I wanted a divorce, no matter what I would say or do, he just did not believe me until I literally kicked him out of our house. I was amazed that he acted all surprised LOL. He still plays it off an entire year later that I blindsided him. I sat him down and made sure he was sober when I did many times.
Just ignore it. Keep on keeping on doing what you need to do.
XXX