What Should I Do?

Look at me, suddenly the posting queen!

So, I had previously posted about a long-time friend (10 plus yrs) of mine who took major personal offense to my F-B post about how I don't like people telling me that I'll get pregnant after adopting.  She skipped S's birthday party in August, but the following week we saw her and even though it was awkward, I thought we had agreed to drop it.

Fast forward to the first of November and I thought I should ask if she wanted to go to lunch.  Her reply to my invite was something along the lines of "we need to take a break".  Huh?

Now we are both going to the same party on Saturday.  I have no idea how to handle this gracefully.  She has very obviously hid me on F-B.  I'm furious that she made something so personal to me all about her.  (She can't handle "negative energy" around her)  seriously, that's what she told me after reading that post.

So, what would you do?