I agree with ToooooMuchCoffeeMan (did I get the right number of o's?) and l33tminion: the story promised me things and then betrayed me in the end.
First of all, how obtuse can someone be? I figured out from the get-go that Ziggy was in love with Liam, and she must have been giving signals for 15 years, and it wasn't until she was literally drowning that he suddenly--after 15 years of clues--figured it out?
Second, why does a person who can't swim walk out onto that solid area overlaying the lake, knowing that at any moment it could revert to wet status and immerse her in water? Or was she actually trying to force Liam into a choice? If so, wow, what a cold-hearted person that doesn't deserve to get the boy.
Third, the voice over the radio. Like ToooooMuchCoffeeMan, I was expecting all along for it to be his voice and that his actions had isolated him in an empty shell of a universe. He saved the girl(s), but lost himself. (I guess that would be more of a PseudoPod ending, though...)
I had high hopes for the story. Things I was expecting to have happen that didn't include the above comment about isolating himself, but also that he somehow caused the death of his wife or that Ziggy did, thereby closing the time loop. I thought this because all through the story it never said exactly how she died or that there were witnesses right up to the end, where it suddenly felt tacked on like an afterthought. "Oh, it was a blue Toyota and there were witnesses."
It was creepy and held my focus right up to the climax, and then I said, "That's it? That's how it ends?" And the extreme convenience of him losing his ring in the lake?
Yeah, it's a story that will stick with me, but for all the wrong reasons.
I'd also like to add that I thought Fowlie did a great job narrating. He really got the emotions across.