Defending champions Barca progressed to the semi-finals 6-2 on aggregate after Thursday's entertaining 5-2 win over Real Sociedad.
Denis Suarez scored twice, with his brace completed after combining superbly with Messi eight minutes from the end.
"I have a special connection with Leo, when I play near him I think and I get things right," he told BeIN.
The 23-year-old continued: "It is a team that gives me a good feeling.
"I think we dominated the game from the start despite their pressure, after the first goal they started leaving gaps and with the three forwards we have, that will kill you."
Namesake Luis Suarez was also on target in the Camp Nou mauling of Real Sociedad, while Messi and Arda Turn completed a comfortable night's work for Luis Enrique's side.