I’m not sure of all the legal stuff that goes with this but I think after 6 months with no contact you have grounds to terminate his rights.However if he grants you full custody you can move anywhere you choose without consulting him but if he has rights you should tell him where your going. I understand your situation with no family also. I stayed in NC for my marriage after they moved back to GA where we are from. I had been married for 10 years before my husband cheated and now want to move back to where my support is(i go to work at 4am and need someone to stay with my boys while I do i dont have anyone here). I am getting ready to go to court on this issue. Good Luck to you I hope everything works out for you.