Just found out that I have a half-sister out there somewhere........

I'm sorry for what you are feeling. I know EXACTLY how you feel as I am an adoptee, and a couple years ago I found out I have a half sister. I get angry because on the one hand I understand the privacy that the birth mother wants but on the other hand, I have a SISTER. Someone I have always longed for. Yay.....I have struggled with relationships to women, but absolutely know that loving a sister would be like the love I have for my children. Hang in there, try to put yourself in her shoes too...