Xue Dili wasn't aware that Athena's memory had been completely distorted; he only knew that the Great Sage and Athena talked about something unknown, and it seemed that Athena was persuaded, allowing them to form an alliance.
Though they were allies to deal with Zeus in those days, unfortunately, Xue Dili didn't know the truth, and the Great Sage wouldn't spend much ink on these matters, merely teaching Xue Dili how to kill Zeus through "strategic deceit".
And now he finally understood why Athena changed so dramatically from an Ancient Greece madwoman to a staunch anti-Zeus vanguard.
It turns out, she completely went through all of her memories and was thoroughly distorted into another personality.
And later, when facing this Divine Tree, she chose to let the tree devour her, and while the tree was consuming her, she transformed those billions of twisted memories into the final Soul Bomb, thoroughly injecting it into the body of this Divine Tree, thereby achieving her goal.
