I don't think that's true. The current SS site says this, which tallies with how it was reported earlier:
That is when Liverpool captain and senior England midfielder Jordan Henderson is believed to have stepped in to play peacemaker, after Sterling had packed his bags and was preparing to leave the camp.
Henderson, who was yet to arrive at St George's Park, was tipped off by a member of staff at Liverpool about the falling out, so arranged for both Sterling and Gomez to meet in one of the players' bedrooms.
It makes sense - Henderson probably knows both reasonably.