Natalie knew that Elijah was sad but there was nothing that she could do about it. She didn't have the emotional capacity to be there for him the way that he would want.She is hurting also yet Jeremy was not here to comfort her.
She cared about his feelings but this time round she had to put herself first. She had to calm herself down before she decided on what she wanted to do later with Elijah. She wanted to rash into making a decision but a part of her told her that that is not right. She needed to process what happened before she could be herself when she finally chooses to be with Elijah.
The truth is, because of Jeremy, she had found herself resenting him. She wanted Jeremy and not him. He didn't do anything wrong to her but she found herself so upset with him as if he had wronged
