LD,
Please read Hellfire's post, reread it, enlarge it, print it, pin it on your closet door, and then reread it every day until the reality of it sinks in.
There's only one part of her post I don't necessarily agree with, and it's this:
And he isnt dealing with it, he is walking away.
I'm not convinced he is walking away. To me, it looks as though he is punishing you in an attempt to not have to own his own shit. There always seems to be a BUT...
I want you to leave, BUT...
You can come home, BUT...
You can rub my head, BUT...
I'm divorcing you, BUT...
I know I did bad things too, BUT...
I want you to be happy, BUT...
Again, I could be wrong. I am only one person, and I am stating what I draw from the posts I see. Unfortunately, what I see leads me to believe he (whether intentionally or not) still draws quite a bit of his own self worth from his ability to control you.
The pattern I see is that with each positive step you've taken to heal yourself, he has countered with an emotional blow guided towards setting you back. Each one of those blows just a little bit harsher than the last. He may not even realize he's doing it, and again I could be wrong. I am not inside his head, and I can't pretend to know what he's thinking. I'm just stating a pattern I think I've noticed. It's a pattern which is truly heartbreaking to me.
You have so much worth, you're finding it, and you're learning what it means to be real with yourself. You becoming healthy is the greatest gift you could ever give to your daughter, yourself, and the world around you. I do know there are a lot of people here who are very proud of you.
Your biggest hangup is N. Gently, you'll never be able to finish that healing if you don't stop gauging your ultimate worth on his ability to see who you are at your core.
The last couple times he has come here have been under the guise of protecting or standing up for you, and regardless of the intention, those times have all served in the end as a huge potential to set you back in your work on yourself. I see you teetering, and I'm proud of your resolve this far. Please don't give up.
This last blow, the paternity question...I just want you to step back a minute and really think. Outside looking in...(again I won't be offended if you disagree, and I'm only trying to give you a potential outside perspective)
N really hasn't been able to deal with his own WS issues. He's always had you as a security blanket. Maybe a tattered and torn blanket, but a blanket none the less. Now, he's made that ultimate step. He's told the world of SI he was divorcing, he has pride to uphold, and the finality of his "walk away" decision is starting to hit him in the face. At least subconsciously, he knows the paternity question will strike you back down to a place where you will be once again trying to prove yourself to him (now on the most visceral level possible for any mother), and not as focused on healing yourself in spite of his decision to leave.
The thing is LD, if you choose to heal yourself, and he doesn't heal himself, you're going to be okay in the end. Him, well, he will still be hurt and alone. Misery loves company. Hurt people, hurt people.
The most extravagant lashings out, the deepest anger, the most vile actions, and the most hateful reactions...most of them come from the deepest, darkest fear. Does it not then make sense to conclude that self-hatred stems from the fear of actually having to look in the mirror? Having to own who you really can be at your worst.
Maybe he's just not ready to face himself yet, and nothing scares him more than knowing you actually are facing your own demons. What did your tag line used to say? You're just another person, alone, falling in the darkness? Could that be who he fears he will be? Alone?