That's it in a nutshell - actions speak louder than words. Marner may have said he wanted to stay, but many of his actions over the course of the last year and a half point to a player with one foot out the door. It was clear early in the season something was off with him - not so much in his play on the ice, but with his demeanor. He wasn't enjoying being here anymore. Add in the fact that many reports have him not being open to much negotiation about an extension, and, well, any quotes or statements about wanting to stay just look like meaningless platitudes basically every prominent player on an expiring contract puts out there. He'd wanted out for some time - regardless of his media-trained statements to the contrary - and made sure the opportunity to jump ship would be there for him. Treliving clearly got a similar impression, which influenced his statements on the situation, not the other way around.