Im paraphrasing here, but if you sum it up, this is what he said on Rogan.
He wants to be the first one to have won 3 belts. But said himself that he already dropped belts two times (with hendricks and bisping)
And he is kinda right you know....
If you were uncle dana, would you make this fight knowing there was a big chance GSP would just walk away after winning?
This is probably why the UFC pushed for Nate. And once the conor/khabib thing is done, maybe they will push Conor vs GSP(if conor loses and is no longer holding the belt), but i honestly see this as a real issue for making GSP fight for the 155 title