UPDATE My wife responded to my email above with this message:
"Hi Alamo,
I'm not really sure what this means. Are you moving to SC. Are you staying in California?"
That's all she wrote. I'm not sure how best to reply. I don't want to sound as if I am giving her an ultimatum, as in, "if you don't give us 50:50 share of our son, then I'm not going to consider moving to SC AND I'm going to file for an ex parte, by the way."
I was thinking something like this: "Wife, my first option is to move to SC. I do hope, however, that we can work together to create a 50:50 plan for our son."
