"I have no one to blame but myself," Letterman says in a new interview. "I hurt a lot of people. I have nobody to blame but myself. I'm not looking to blame anybody. I'm looking to find out why I behaved the way I behaved."
"Now, I feel better about myself, my relationship with my wife is never better, and it's just because I want to be the person I always thought I was and probably was pretending I was … and so far, it's been great. Things have been great."
In the interview, Dave says that he finds his long-time nemesis Jay Leno to be both the funniest and most insecure person he's ever crossed paths with.
"I've never met anyone quite like Jay … just flat out, if you go see him do his nightclub act, just the funniest, the smartest, a wonderful observationist and very appealing as a comic," the Indiana-born Letterman said. "The fact that he is also maybe the most insecure person I have ever known … I could never reconcile that."
Dave and Jay have famously been at odds since Jay, in 1992, took over for Johnny Carson as host of The Tonight Show, a job Letterman coveted -- and thought he'd been earmarked for.