Calls from my ex on Christmas

My ex and I didn’t end on very good terms as he dumped me with a bunch of dumb excuses of “it’s not going to work out” “it’s not you it’s me” “I’m gonna fuck if your life” “don’t you see I’m pushing you away” yet last night I had 8 missed calls from him. Mind you he’s usually a person that calls once and if I don’t pick up he usually waits until I return the call except for the last time I got about 5 missed calls he was drunk. The day he told me all that was the day we met up to speak like adults and we had the chance to speak about everything and he told me that was his final answer so that was that and I accepted it even though it hurt so I don’t see what else needs to be spoken through these phone calls. I have not called back. What would you ladies do?