He is just pushing your buttons. The mediator will help you hammer out whatever issues you need to be done. It can be simply custody and support or it can include other things. They can be a huge help because they would ask your H specific questions that he was stonewalling on. For example: 50/50 custody. Ok - joint legal and joint physical - what will the living arrangements be - one week with you, one with him and switch??? These are the things the mediator will ask. They don't just have you state your case and let him sit there and say "I don't agree". It is up to you Heather but mediation is a far kinder, cheaper process to come up with a consent order - that is what the custody thingie is called.