The moment Lara fainted inside Ren's soul, the original incarnation watched silently. Watching how Ren's two companions fought until the bitter end reminded the original incarnation of his own companions. They too had fought bravely and persevered without giving up until the bitter end, where only he remained.
It wasn't just his and Ren's companions most of his reincarnations had companions, and like all those that come in contact with the Strongest Mortal Soul, they too were influenced by their stubborn nature. Every companion his reincarnations had all fought beside him and accompanied each incarnation until the bitter end.
Even now some of those companions still live and fight to break through the confines of destiny, of the ORIGIN's control.