These last few episodes have really torn at me emotionally.
I'm not too keen on the Man in Black (to the point where I was cheering him on when he put a gun to his head) but I did quite like those flashback scenes. He really did need fleshing out as a character so I like that they introduced the family setting and how his "obsession" per se had affected them. His descent into paranoia leading to him killing Emily was actually quite intriguing, and probably the first time I have enjoyed one of his storylines.
Also, Teddy in that final scene: