Lol lets be honest here. The way the UFC approached Jon Jones for this title fight, there is NOOOO WAY Jon Jones was able to turn it down. Even if he didnt want it, the UFC put him on blast. He had to take the fight...
I was thinking the same thing. To offer it to him right there after the Bader fight. Never in a billion years is he going to say anything but "f*uck yes".
If had he had a chance to go home, and talk to his coaches/team about the offer... he still would have said yes.
When it comes down to it, when titles are on the line, you do it. You might not like it, but to live the rest of your life wondering "what if?"... that shit would eat up inside.