The pair were recently named in the same Chile squad for the first time in two years but didn't speak to one another despite sharing the same dressing room.
"Bravo's wife accused us of partying during the World Cup in Russia and not training because of drunkenness," Vidal told El Mercurio.
"One of the two of us must take a step forward and it wasn't me, for that reason I didn't make any problems and we both trained individually.
"He gave everything, as did I, the team could see that. We're not friends, nor will we be, but the national team is the most important thing.
"I have said things [to Bravo] and I don't have any reason to say them in the press. I am man enough to say things face to face. I don't know if he understood what I said, but we haven't spoken again since then."