On the other hand it may be one of those times when something bad turned out to be for the best. You might not even have liked this place. I've lived in a lot of apartment communities and IMO having a good manager is second only to having good neighbors.
Apartment managers have to be tough but not intimidating.
If you can't get documentation it seems like this would be a questionable asset. It might be worthwhile to speak to the manager if she is holding the application.
It's all going to work out but I think I understand what you're feeling.