Oh, the idea is definitely that it would lead to pretty dark stuff for real!Graves. Not sure what yet, though. But it began with a tragically false sense of trust. Basically, I see it being like Ginny in the second Harry Potter book; she thought Tom was her friend and trusted him, then bad stuff started happening and he was who she told because again, she trusted him. By the end she's almost killed people and would have died were it not for Harry. That's kind of how I see it - not literally, but the guy being taken advantage of and not realizing it until it was too late. :(