"the way he does his interviews"? wat. he's a stand up guy and is completely honest. Paid his respects to Shields etc.
No, Diaz got pissed off and refused to shake his hand in the cage after Conor v Diaz 2. Diaz's reason was "you are a sellout helping someone from another country when you're an american". Then he challenged Danis and bitched about him in the post match presser. Then the next day on the MMA hour Danis said he had no idea why Nate acted like that but if he has an issue they can have a BJJ match or MMA match he doesn't care (any one would say the same if they were disrespected for no reason).
ah...they are friends. Conor has said on numerous occasions that Danis is like a brother. He helped him for Alvarez and Diaz. Kavanagh has coached him in a few BJJ tournaments now and when he transitions to MMA he will do his camps at SBG. Seems pretty darn close to me.