I believe the writers feel they have hit a gold mine in Adam. He has been the star of the show for a very long time now. I don't think he is feeling sorry for anything he has done. He is only getting close to Sharon to see what he can find out about Nick and to make Nick upset that he is seeing Sharon.
This is going to cause alot of trouble for Nick. I do believe Adam may get found out about the news he leaked against Victoria but not the rest.
My opinion is that the only way anyone will find out about the baby will be something happening to her. Adam does not want anything to happen to her to cause her to have a blood test at all. That would blow his cover.
Today, I remembered that Ashley Saw Dr. Taylor when Adam brought the baby to her. I hope That s/l ends very soon.