Not worried about her, just problems she might cause in the future... but will deal with that if it comes.
As for the families... I think my parents are going to be a little shocked... but they'll get over it. WHEN they meet sg & ab and the kids, they're going to see how better off I am with them than my ex... how much they love me and how much better I'm treated... that's all they'll care about, that I'll be taken care of when they go. (I was an only child so no siblings to help).
I haven't met their families yet, so I can't say how they might react. I know sg's future sil was told and good with it. Don't know about the rest.
"Thou art to me a delicious torment." - Ralph Waldo Emerson