You don’t offer a guy a contract, low or not, if you you think he’s crazy. That would be stupid and the Bills aren’t stupid.
He started acting eratically after the contract offer. It’s reasonable to surmise that his change of behavior and the contract are related.
It’s clear that he felt he was mistreated.
What’s your point? The Bills were aware of his history and they signed him twice, and then resigned him.
It appears that the contract negotiation triggered some sort of breakdown.
The Bills obviously couldn’t have predicted that, but he deserved better than the low ball contract they offered him.