HI. Sounds like he (the ex) has a boatload of problems. He gets high and he gets beat and he goes back for more.
You already know....he won't change things unless he wants to.
I wouldn't expect a thing from him.
I bet that him having to come to the house to see his kid makes the new woman as mad as a hornet. Could you have him see her somewhere else?
There may be no solution for this other than to take care of yourself and your kids. First and foremost, that is the best thing you can do.

I never thought about a mutual area to meet. that sounds less threatening. yeah my thoughts on that i need to just focus on kids ans forget about depending on him. thank you. always works to see it through someone else mind.

Back at the beginning of the year he bought mea truck n put it just in his name. He took it today and hasn't brought it back. drunk and driving. ugh! I'm never going to let it happen again. buy my own stuff for me n my kids n never trust him again. i always say that n it just a cycle. sigh.....

Hey girl,,, deffiinition of insanity is continuing to do the same thing over and over and expecting different results,,, I'm thinking the fact you used the word ex,,for a reason,,, the only confrontation you should have with him, is the concerned with the child you had with him,,, obviously this woman he is with now,, is crazy,, and it linger us your problem if he lives the life of insanity,,, ok really he keeps going back to that,,?,, you really only should be using the title single mom,, not caretaker of an addict that happens to be the ex,,, let go,,,
There are times when you place no expectations on anyone,, and then your never let down ,,, really you can only expectations on yourself,, it's called self control

In order to live in peace,,, only you can create peace

Addicted parents are of little help, if any. I guess there are exceptions to every rule, but.........
My ex went to prison from 10-2002 to July 2012. He's been out a year & i was actually STUPID ENOUGH to think/hope he might actually have changed for the better, would want to live a sober life after being in prison for nearly 10 years, might actually have learned his lesson & come out with words of wisdom for my 2, now adult addicted kids. Oh,he has all kinds of advice, but is right back into his own addictions, and continues to be of NO HELP WHATSOEVER. I was a single parent when he was in prison & fully expect to remain a single parent forever. I resent him for the genes he passed on (not really fair, but it's me geing honest & i punish myself for my own part in letting that ever happen to start with) , & for the frimes he committed that destroyed our family & statistically set our kids up for failure. I'm glad he lives 7 hours away, although when I'm dealing with my kids' addiction issues, I wish it was HIM experiencing the suffering instead of me.