I think Cream's got it right... they probably just ran over to the local justice of the peace or member of the clergy, so that if the worst happens, they would at least have had some time as husband and wife. They are, more than likely, planning to have a "full" wedding with all the frills when he returns.
If she knew the story was going to be on the news, she should have given her closest friends a heads up... but she chose not to, for whatever reason. She is probably just upset and not thinking straight. I wouldn't hold it against her.
Hoping he comes home safe.
