Refuse to look back

I have made some pretty wise decisions lately but I want to confess one very unwise decision.
One of the first things they tell you to do when you leave an abusive relationship is to change you number. Remarkably, I have not done that yet and I am becoming aware of the stupidity in putting this off. I thought I could just delete any messages and ignore any calls and it would not bother me. I didn't want to have to change my number and be faced with the possibility of having to explain why I changed it. So I continued to put it off only I found myself starting to read the messages and listen to the voice mails. Every time his number flashes on the screen it all comes back to me. The memories start to take over and its like hes still trying to hang on to my life. That even in recovery hes throwing as many verbal jabs as he can. I will not let myself be owned by him anymore. This has to stop, I will change my number and refuse to look back.