So, I have a 100% return rate on the RSVPs I sent out back in August. I know that's pretty amazing after the horror stories I've read on here. Some people declined and I have 3 spots available for our small ceremony (venue allows 25 people maximum). I have a co-worker who I'm close to (we both went through ugly divorces from our 1st marriages and she helped me decorate my apartment). I wanted to invite her at first, but FI and I had to really narrow our list down and it didn't work out. She's been really interested in the wedding plans and asks about them regularly. How do I invite her now without making it seem like I "B" listed her with 17 days to go?