Thank you both for responding.

I agree that there was communication that I was not made aware of. I would ask him what was going on with her and the baby and he would become frustrated and very defensive when I questions things. Which in turn made me feel as if he didn’t want me to know, I always had to explain my questions and why I wanted or needed to know. I felt like he didn’t want me involved and that was the complete opposite of what he said.  Stonewalling is how he reacts during tough situations, he shuts down, shuts me out and runs away without providing me with any information. He says hes done and all communication is cut off. He purchased a house for the 3 of them to try to live together and raise the baby as a family, but it wasn’t working, their relationship was over before we ever got back together. But he eneded up moving out of his house and into mine to get away from her because she became intolerable. And she put a restraining order against him to keep him out of his own house that he bought because he asked her to move out. I do not know if he went back to her, it seemed to be his intention even though he sai he didn’t want to leave me. It seems as if to him its his kid or us. He cant have both. Even though we have plans to take her to court and at least try to get 50-50 custody of the child.