Di Matteo took more than an hour to emerge for his post-match press conference but he said that was not because he had been grilled by senior club executives.
Asked if it would be unfair to sack him given all he had achieved last season, he said: "I'm the wrong person to answer that question."
He added: "At the moment, I think, with the team, we are all in it together.
"At the moment, I am here and I think I will be for the future. As far as I'm concerned, I'll keep working."