@Priziesthorse I slowed it down and this is what I heard:
Nate: "He won the rounds that he (Mayweather) didn't even try. Mayweather didn't even try. They thought he (Conor) was up 3 rounds and he wasn't.
Schaub: "I thought he was up 4 rounds to..."
Nate: "But that's just your lack of knowledge though."
Schaub: "I guess, but I think it's just your lack of knowledge, I think you're off (on???) here, dude."
Some background shit is said by neither guy, then:
Nate: "Fuck you."
Schaub: "Nate, I have no problem with you."
Schaub never said "he teed off on you." That was simply never said at any point in their conversation.