Her mother didn't question her whereabouts as usual. The fact that her mother was easily fooled wasn't surprising to her, moreover, Natalie is an outdoor person and Daniel must have taken advantage of that excuse. As if that wasn't enough, her mother and Daniel were literally best friends and she was confident that he was taking care of her daughter. Yeah, he was taking care of her very well - if only she knew.
It was kind of pathetic but Natalie broke up with Edward through a text message. It was for the best because it seems that she just made a huge mistake. Natale shouldn't have told Daniel to do whatever she wanted, that had been said on a whim because she was tired of him bothering her. Sadly, Daniel was doing exactly whatever he wanted, and right now, he was posing as her boyfriend.