What my food poisoned mind tried to come up with was that Graham became a crueller man because his wife was supposedly killed by shapeshifters, since he saw that Harriet is still alive and helping similar supernatural beings to those she was supposedly killed by, Graham now is going to see if his wife is actually still alive, if so then help her all he can. If not then have closure. 

I was hoping that the theatre battle would be recognised for it's role. I was really hoping for a lot less then what it's become, the underground will provide shelter from large scale battles and provide chances for personal interactions... I had a lot less in mind when I first started off the conflict.