Elle was not sure what would happen to her once she infiltrated the enemy's territory just to save Charles. She was aware of the danger but she was willing to take a risk.
This was one of the reasons why she called Erick. She felt guilty for her husband. They just got married yesterday and now things like this happened. It couldn't be avoided.
She wanted to finish this once and for all. She did not want Charles to suffer like this because of her. She had to do something even if she would put herself at risk.
If anything could go wrong, she didn't want to have regrets that's why she wanted to spend some more time with her husband before she could go and try to save Charles.
She wanted to prepare a romantic dinner for Erick. She would cook for him as his wife. Tonight she would give him the most memorable night.