I was reunited years ago. I just found out about GSA a couple of weeks ago. I've been in love with a half sibling for many years. I've never acted on it, or discussed it. However, it's very difficult to date and get married when you're in love with your sibling! Life is crazy.
I won't act on it because it would destroy our lives. I agree that true love sometimes goes unrequited. And unless people understand and the law evolves, I will remain alone and miserable.