What’s wrong with you?
Greet her and let her talk, and ask questions... When it comes to your brother tell her gently you did not get along with him.
Think of the poor girl desperate to have family.
My ex had a baby she gave up for adoption. She suddenly called my home 2 years ago and spoke to my daughters- I have no idea how she tracked us down. She was crying and we had to explain to her that her mother had died but she had 2 brothers and 3 sisters. (well, half-siblings)
They are all meeting for the first time at her wedding.
It is neat that you were so gracious and caring to her.
Let me add that I really admire how you handled your situation. I realize it is ongoing, but still. Great attitude.
My brother was killed, righteously, by the police.
He attempted to kill his second wife and daughter.