No, I would not care!! It's a nursery, it's not like you copied her or anything. And if she's not having anymore kids, then why would she act like that?? I know that deep down I would probably be a little hurt because it was a girl and you were doing the theme that I wanted to do and I never got a little girl (if that makes sense), but I don't think that it's anything to freak out about. I would continue to plan to do that theme, it's what you want, not her.