I had another take from what Manning said to Belichek...."this is my last rodeo"
Given that the Colts and Broncos are horse themed, I think this was significant, the emotion he had was a feeling it was his last matchup with them. I think he leaves the AFC and plays for Arizona probably. Tampering be damned, he may have already spoken to Arians. Houston, Cincinatti, Chicago, Tennessee, Miami would be distant options. I think he should go someplace warm.
I think there is bad blood with Denver and Elway, for muting him at end of 2014, firing Fox, and trying to bench him this year.
In my mind, Mannings emotionality could be explained by his Denver tenure ending, and AFC matchup with Brady.