Where You Least Expect It

In which Derek is neither loving or dreamy and that pushes Meredith into the arms of another but can she really accept it when she falls for her ex-boyfriends ex-wife? Meredith/Addison. Callie/Meredith friendship. Callie/Erica on the side, because I'm a sucker for hopeless pairings. Rating is T for now but that may change... I'm not sure