Gavi have been an important player in Barcelona which is why they was a serious rumour that went viral about the offer of Gavi to PSG in exchange with Mbappe.
The whole players of Barcelona got this information that Gavi, Dembele and Raphinha are to be given to PSG in exchange of Mbappe to Barcelona then Xavi was disturbed on the situation because that is not what actually happened.
Xavi had to meet Gavi so as to tell him the real truth about What PSG really intended to do instead what the Barcelona players heard.
Xavi told Gavi that PSG never asked Barcelona to offer Him, Dembele and Raphinha in exchange to Mbappe instead PSG never wanted Mbappe to go to Real Madrid instead they want him to come to Barca and that is why there doing there possible best to bring him here.
Xavi then reassured Gavi that he is very important player to him and never thought of selling him to any club, that all he heard was all fabricated.