Bubba made it clear ... he and Hulk are no longer best friends -- in fact, it sounds like they pretty much hate each other's guts.
At one point in the show, Bubba called Hulk a "self-centered" man who has delusionally convinced himself that Nick was innocent in that 2007 car crash, Brooke actually has talent and that Linda is "whore." Bubba actually defends Linda throughout the show.
Bubba never really denied having anything to do with the sex tape -- but said, "I'm gonna be honest with you, I have not seen the tape ... including me supposedly bragging and being a horse's ass."