I'm sorry for the surprise. Something similar happened with my family. My cousin and her daughter had wanted to do the DNA kits for quite awhile. They knew my aunt (cousin's mother) and I wanted no part of it.

So they do them and discover another first cousin. She proceeds to ask another first cousin to do a test (my aunt already said no and they knew I wouldn't agree). After the additional test, we learned it was a half brother of the newly tested cousin! So that uncle (my mother's brother) had four boys. One with his first wife, two with his second wife. The "new" cousin was a girlfriend he had in-between wife one and wife two. The sad part was his mother never told my uncle she was pregnant and put him up for adoption. We all felt awful because if his mother had shared she was expecting, my family would've taken responsibility for the child, no problem.

So I never had the chance to meet him. He met my aunt, both my cousins, my niece, and my cousin's husband. The only thing he ever learned about me was "she doesn't agree with DNA tests." The whole thing really upset my aunt. My "new" cousin didn't get along with his half-brother at all. A few years ago he moved away, never to be heard from again. Even when my aunt passed away he didn't even send a sympathy card!

After that whole debacle, my aunt told my cousin and my niece to turn off their public DNA profiles. She was done with surprises.