Here is the GA Statute that provides that you may record a conversation you are a party to, or a conversation between 2 other parties, as long as 1 party to the conversation gives consent:
Ga. Code Ann. § 16-11-62: Secretly recording or overhearing a conversation held in a private place, whether carried out orally or by wire or electronic means, is criminally punishable as a felony under statutory provisions regarding invasions of privacy. However, the law expressly provides that it does not prohibit a person who is a party to a conversation from recording and does not prohibit recording if one party to the conversation has given prior consent. Ga. Code Ann. § 16-11-66.
So, yes you can record your conversations with your ex.
But, let me give you a piece of advice about that, from my own personal experience:
Judges are not stupid. They will see through any attempts you make to goad him into saying what you want him to say. Just be careful.
Thanks for the information and I will be very careful in my actions