Unexpected goodness

My wife has been signed into yahoo just playing around on my account and guess who shows up? My ex wife!!! The woman who I haven't seen since 2002 and took my son whom I also haven't seen since 02, and haven't talked to since 06. Long story about all this. She was living in Germany. She now didn't want to tell me she is in Germany and wont give me an addy or a phone number or even a picture of my boy. She was the most hatefull she has ever been to me. She is mad at me like, she didn't steal him to begin with and she wasn't the one who wouldn't let me talk to him in 06. I think she is living in the states and doesn't want to tell me or she has hit rock bottom in Germany and doesn't want me to know. She said my sone didn't want to talk to me but when I mentioned he had a half brother he wanted to know his name and my wifes name. She wouldn't tell me her new last name either. WTF??? I'm hoping she is in the states so I can rebattle custody for him. It's been very hard not seeing him or talking to him. He looked just like me when he was 2 when I was 2.