I reside in the state of Mississippi. My ex wife has full legal custody and we have joint physical custody of our six year old daughter. We divorced when our daughter was nearly three years old. I would have my daughter every weekend (Friday-Sunday), but always wanted to spend more time with her. Ten months ago, my ex called and said she was going through some tough times and was divorcing her fourth husband. In her own words, she stated that it would be more stable if our daughter came to live with my girlfriend and I. I was thrilled. I enrolled her in school in our city where she has excelled and was accepted into the gifted program. She has established a happy life here. My ex moved to our town a few months later to escape her troubles where she was living. She has visitation with our daughter on weekends. We had a minor argument two days ago, and yesterday she said that she was taking my daughter back to the coast (five hours away). She is dead set on doing this. What can I do to get custody and relieve my worries about my daughter being taken five hours away?