How do I handle a lifetime of dealing with this woman?

oes anyone have any idea if mediation helps.? My stbx has been busting my by getting an order of protection against me and keeping our daughter away from me as much as she can . Before she had me arrested for battery(didn't do anything to her) she acted like we had turned the corner on our marriage and things were getting better and then wham there was a knock on the door which my stepson 11 and my just turned three daughter went to answer they came running in to tell me there was someone at the door who wanted me, it turns out to be the server with divorce papers anybody else have their kids tell them that the divorce papers were there. She is totally cold blooded for the last 1.5 years I have struggled to get back on my feet while having lost everything I owned in the world and have done pretty good. I now have a wonderful girlfriend , anew home and a descent life which I'm sure really pisses her off.While I was in jail she had taken 5 lug nuts off the front tires of my truck,