Define I Love You, Man Meaning

From the popular podcast S-Town :

John B. McLemore : I love you, man.
Tyler Goodson : I know that. I love you too, John B.
John B. : And just because I say that, Tyler, doesn't mean I'm trying to get up your butt !
Tyler : I know that, John B. You've been like a second father to me.

(Months later, after John B.'s suicide) :

Tyler : Poor John B. Man, I miss that fucker ...

If S-Town is essentially correct, I think a lot of people miss John B. We all love you, John B. And miss you.

Terry: Wayne. Wayne. Garth told me about the show, man. I love you man.
Wayne Campbell: Yea, and I love you too, Terry.
Terry: No no no, I mean it man. I LOVE you.
Wayne Campbell: No, I-I mean it. I love you.
Terry: No you don't, man. I love you.
Wayne Campbell: being hugged by Terry Garth. Hey, come over here, I think Terry has something he wants to say to you.
Terry: I love you, man.
Garth Algar: Thank you.