Earlier in the trip, Drax had told Mina that he wanted to have a surprise romantic dinner with Mills, and she agreed to help him set it up. It was part of the reason she did not mind going to the beach without the men they came with. She figured the time would give the man the freedom to prepare without Mills' knowledge.
What Mina did not realize was how much chaos they were going to cause by leaving their phones behind. It was meant to be a lesson, and they were not to wander too far away. The women had genuinely believed that they would be found since they had travelled within walking distance. Everything else that happened was beyond foresight, and Mina was starting to think that she was an extreme variable.
