Big said he needed some time to figure things out. He came back and wanted to try again, but broke up with Carrie over a post-it. Carrie was together with Aleksandr and moved to Paris with him and things went wrong. Big appeared and they got back together, again.
Des found the constant in his time traveling. That is Penny. Everyone in this ireland has their own faith and belief. Some of them want to get off this ireland. And rest of them still keep protect this magic place.