I'm pretty sure it won't be an entirely happy M/M on s3. There will be some sort of drama and like you (and probably all of us here) the
angst is so worth it. That drama at Lavinia's funeral and Mary saying "Of course it's the end. How could it not be?" Gaaaahhh. I hung on to that for dear life because there was still the Christmas ep so there has got to be some unresolved issue right?