D2392009, part 1

The pool was quite empty, the water in it could reach not much more than a meter.
They were standing near it, just talking. She seemed pretty happy, even though the whole place looked awful. Dark and not very clean. He felt something strange inside, but he didn't care, he never cared anyway. The third one was close to them, and he knew he would eventually let her go, she was supposed to be with the third person in the place, no matter if that was too painful to bear.
He stared at the guy walking close to them, he hated the idea to let her go with him. But, somehow, he could accept it. She didn't even bother to the fact that he wasn't looking at her while they talked, she was... happy.
They were at the border of the pool, if you could call that a pool, perhaps a child's pool. There were some places in which the floor was deeper. And a strange hole could be seen at the right wall. A big hole.
But no matter how bad he felt he stood there, waiting for the time to say farewell to her, she was supposed to be with someone else now, someone who had just entered the conversation. Happily. He could feel his inside being slowly torn apart, as she drove her attention more and more to the third one. Bad thoughts walk along with bad things.
He couldn't see it, he didn't understand it. They were down the pool now, in a part where water barely covered the floor. He was lying on the floor, hugging her, he could feel her pain just by touching her. Her voice was weak. She would start crying any soon. He didn't want to let go of her, but he did it. They got up, the third one was still there, standing close to them, worried. They talked a little until things got calm, still there at the pool. He felt he hated this third guy, yet they acted like real gentlemen.
There was something wrong, he felt it. There was something else near them, it wasn't just this stupid guy acting all kind to her. Bad thoughts walk along...
He got out of the pool, climbing the wall. Third person followed him. Both stood there watching as she climbed the wall. He felt like helping her but he just didn't do it. A strange noise echoed through the room, coming from somewhere they weren't aware of. But he was. The damn hole at the right wall, there at the pool.
His mind then got information about a female something living in that place. Could it be... "her"? The information was pretty blurred and all seemed like a grim urban legend. A part of him urged to help her, the other stood there, watching. There was just too much going on, maybe the hatred toward her and the other guy, the fear, the part willing to see what would happen next.
It got her right at the left of her chest. Like a dog biting the weak part on a weak prey. But it was a shark. Water filled the pool, as the big shark swallowed her, bite after bite.
The third guy was shocked, but he didn't seem to know what to do. Both stood watching. His mind barely holding on to the belief that she was gone, that was just too fast. As the shark went away they walked through the room, silent. She was gone.
Forever.