Spurs have won just three out of 11 games this season and have conceded 10 goals in their last two games.
And Pochettino added that his team must learn from their defeats.
"We maintain a very good relationship and it is extraordinary to have that support," Pochettino said.
"I have always told him that, in addition to my chairman, I consider him a friend."
He added: "Football is not a drama, it is passion and we cannot separate it from emotions.
"But neither can we make a sport as fantastic as this one because of the latest result.
"We must learn from defeats to be able to exceed our limits and that begins by accepting that you don't always win and that the opponent also works hard and makes merits.
"You must always react with dignity to the result, regardless of whether it is good or bad."