I'd like to get advice on the etiquette of inviting a acquaintance who invited us to her wedding a couple of months ago. I was surprised to get an invite to her wedding because, although we were close friends in middle school, we haven't been close or even socialized for 15 years. Our guest list is already at the very top of our limit, but because we were just invited to her wedding a few months ago, i'm unsure what the protocol is. Her wedding was beautiful, but much more casual; they didn't serve any food, cake or drinks (there was a cash bar), and we are serving a plated dinner, and open bar. I don't mean to sound shallow when I say that, but I'm just now sure what to do in this case. Thoughts?