BC - I have read through your situation, and I feel that your W is only reaching out to you because the OM dumped her and she is pregnant and scared.
If you go back to her in anyway, my guess is you will be hurt again. She is using you.
The only way it seems it could possibly work is if you just move on for now, let her have the baby and figure out her life...and then later IF she hasn't already hooked up with someone else, maybe you two could try again.
I know you want to help her as she is pretty helpless right now, and you will always be there for your child...but really, by just giving in to her demands for help, you are just showing her you will be treated any way she wants at any time.
You really have to man-up, grow-up, and stop being her daddy. I don't mean this as an insult...I mean it that what she NEEDS is a true self-respecting man who will not cater to her whims. She may think she needs the princess treatment from you, but she is wrong. What she needs is to be left to work out her own problems.
