In particular, he sent a strong emotional message to Habs fans: DETAILS HERE
Also, Toffoli revealed to Luc Gélinas, of RDS, that he had good conversation with management, with Jeff Gorton and Kent Hughes, before the trade. He sent them a clear message:
«I had many discussions with management and made it clear that I wanted to stay. But I also told them that I would understand if they ever wanted to let me go." -Tyler Toffoli
Despite this wish, we know what happened. Toffoli is now a Calgary Flames player, which makes his wife very sad, as he said. (just like many Habs fans, by the way) Certainly, it confirms that it was really not his decision to leave, and he never wanted that.