I don't know that I "blame" either of them. It makes for a great read though.
On another note, I personally feel this is just a great way to launch his new blog rather than "clearing his name" as he states, but I guess he has to state some reason.
At the end if the day, the dude's a writer, not a radio host (if that wasn't obvious), and this is too good a story to pass up.
At the same time, I don't believe he could have ever of "known" what he was getting into, as many here and on Richie's blog have stated. I was married to an addict for 7 years. It's one thing to "hear" about addicts, their behavior, and their web of lies and deceit, and another completely different experience to live it. You'll never truly have any idea of the chaos and destruction they create...until you're there.