We divorced because Kent was having an affair. i said I would file for "no-fault" and take the kids to GA with me, because that's where my family was from. He was too busy living it up with the woman he was sc*****, so he said OK. I would have slammed him hard in court had he fought me.
Lots of time has gone by, he's grown up, so have I, and I realized I contributed to the divorce just as much as him, just not at that immediate time, but that IS what got me out here to GA with my family.
The fact that your ex is so non-existent and has instability problems would probably go a long way in court, unfortunately it costs to go to court. <img src="/images/graemlins/frown.gif" alt="" />
Maybe you could check out advocacy groups.