I have a friend who is a bio mom. She is a Christian and has a great husband and a beautiful daughter who is the BEST kid (they really did a great job with her!). A few years ago she wrote a letter to the agency that helped her with the placement of her son. After making sure it was okay with him and his a-parents, they gave her a phone number and she got to talk with him. They called each other periodically the last few years to talk about their lives. It's not my business to write details about their relationship but I do know she is at peace with the decision she made that many years ago. She thinks of him, of course. She wonderes about his life, I'm sure. But she has been a big influence in my life. I think we have helped each other really....I hope. We have talked about our feelings-- all that adoption does, can do, what it SHOULD be about. Mostly though, she is just my friend. She "gets me", I "get her"....we don't smother each other, we are not needy, we both have a weird sense of humor we don't need to explain.
You have many acquaintances in your life but few good friends.....I'm lucky to have her.