While it was certainly an odd way to start a conversation when you hadn't seen each other for a long time, perhaps she was just trying to find something in common to talk about. It could be that her life is centered around her extended family and she assumes everyone else's is as well.
If I bumped into someone I hadn't seen in a while, I would have first asked about them, then their family. They could then talk about either their spouse, children or GC. Certainly a more open question.
Some people just have odd ways, and don't realize they might be intrusive, or dismissive of how you are doing!