No worries, there is life beyond the internet.

Can you post a photo of the coping? With what you've described, I can picture a few different options. If your pool is 115 perimeter feet, then $5,000 to remove and replace is pretty standard.

The crack is common. This is where the pool beam meets the deck. Theoretically the deck moves while the pool remains relatively static. Mosaic tiles succumb to this movement much more so than if a full 6x6 tile was in its place.