Divorced over a year ago. Co parenting a single child. Her mom and I have not been seeing eye to eye on things and now she only wants to communicate through email. Long story short, she has been very cold and nasty, similar to when we were going through the divorce process. She has threatened to fight for full custody recently. I feel I am going to be served something soon. What are some nasty things people do in courts after divorce to hurt people or screw with peoples lives?