Did he hire an Attorney to fight for the baby back? I was wondering how long he has to fight this in court? If he doesn't show up at court, I would think he would lose his rights but I am not sure. I had a friend that just went through so much like your story. It went on for over 1 year but at the end the birthfather signed his rights away on the last hearing and now nothing can stop the finalization for the Adoptive Parents.
If I were you, I would get an Attorney like my friend did and see what your rights are. The birthfather does have a right to parent but I can see where you are upset because the baby has been in your care for 3 months. I hope things will work out for everyone. This is such a sad thing that everyone has to go through. It would of been nice if he would of just step in and wanted to parent and now look what the baby is going to have to go through..
I hate hearing stories like this. It's so sad for everyone involved...
Best of luck and keep us posted.