What the OP has alluded to was that sometimes you just like the people you work with, and if you are in a situation with long hours and hard work, for some people it's more efficient to endure that in person and not in isolation, and it's not always a BS manager thing. Whether you choose for some reason to cling to those people, or fully realize that this is a team that gets together to get shit done, not a family, is a completely separate issue.