I wouldnt take it personally. One of my sisters was in the exact same situation. It was a very hard time for her and she had to do everything 1000 times faster in planning the wedding. I'm sure she wasnt aware that two reporters werent going to be there. Her sister might have gotten that idea to call the news stations and invite them over. In my case I didnt know the time of the wedding until late the night before and i'm considered pretty close to her.
Its understandable if you are upset, i think i would be too. But put yourself in her shoes. She's going to have to let go of the man she loves for a long period of time while he goes out there to protect himself, her, and the rest of our nation (including you). If i were her, i wouldnt be able to think straight. I know i'd be a mess and I would want to do everything i could to spend every waking minute with him.
Try to understand that she is dealing with a lot and I'm sure there will be another wedding in which everyone she loves will be there.