Where I struggle is striking the balance between giving up and moving on. It really, really is a grey area. How do you not give up, yet move on?
I agree with Harrier, it's not "giving up". Giving up implies failure, and Heaven knows there are few if any quitters on these boards. Quite the opposite, the people here are incredibly hard workers, putting tremendous effort into marriages that are seemingly beyond hope. Whether you work at it for months or years, getting to the point of acceptance that perhaps the M can't be saved and deciding to move on to a new life is not giving up at all. It can be as big a success story as saving the M.