How do I go about getting charges dropped and not getting a misdemeanor on record?

I had a semi physical fight with my kids father. Out of anger I went to the police station to file a domestic violence report.  The police officer asked if I wanted to press charges I said no, they asked if I wanted an order of protection and again I said no. He received a letter in the mail stating that he has a warrant and has to appear in court but has yet done so. How can I make it do I can drop charges which I never  Intended on pressing and how so I go about it so he doesn't have a missomeanor on his record?? Help please.