D.W.
I think you might be being a bit over-sensitive here. This is the middle of winter, lots and lots of bugs going around, people are super busy and stressed. You might need to consider what is going on in her world too. She may have things going on that you don't even know about that is keeping her away. And really, there are a lot of people who steer clear of a new, new baby because they may understand that's it's important for everyone to get used to the new routine without tons of visitors.