I read through the other threads... soon to be former Mrs. Big Ben, this is for you.
Only because there's no middle digit emoticon.
Remember that whatever happens is not a reflection on you or a clue that you may somehow be deficient. More than likely, the people around you feel like something is up. Nobody will think worse of you, and you won't be downgraded if you start talking about it. You don't have to swallow your pride when you respect yourself enough to make changes. People will respect your stand, and when the dark time is over, they will help you find someone new.
Damn, a lot of shit happens through life. Sometimes we cling to the thing that is hurting us most, afraid to let go. We hold it so tightly, disbelieving that release would be mutually beneficial.