We planned an immediate family only ceremony my fiance's mother, his brothers and sister in laws, my brothers and sister and associated in laws. No aunts or uncles, no nieces and nephews. The plan was to have an intimate cermemony followed by a lovely sightseeing cruise on an amazing lake, then off to a private five star dinner. Two days later we planned a huge BBQ picnic for everyone to attend and help us celebrate. We have a huge guest list, and just bought a new home so a large reception is out of the question. My sister decided to give me hard time that I didn't invite her daughter. She has even brought up that I don't have any parents attending (this is because they have both passed away not because they aren't invited). I tried to explain that we have to draw the line somewhere and I can't let my niece come and not let the six n/n we have on my fiances side of the family. My sister has ruined my plans and has tarnished the whole event by reminding me that my parents won't be there to share in the experience. We are going to go ahead and get married without anyone there and continue with a fake wedding at the reception. At this point I don't even want to look at my sister. Any advice?