she didn't come the next day.

of course, he wasn't waiting for her, he just scanned the whole beach with his binoculars several times to make sure it was safe. 

he obviously, didn't spend a pound on buying an extra can of coke, just in case she came and was thirsty, he was just simply saving it for later.

he clearly, didn't volunteer to do the last round of checking the area, before closing the beach, just so he could get a glimpse of her, he did it because

because

he missed her.