wedding in the same place....

EDIT: after reading so many responses let me make it clear that I am not the mad one in this situation. It's ridiculous how many people jump to that conclusion. This could have easily just been a hypothetical question. But I'm the one asking because I'm the one getting married in the same place as my future sister in law did and SHE is mad and won't speak to me. Jeez Louise, no need to be rude.