Liv Morgan is officially back after nearly half a year away, and she was involved in a moment with John Cena at Survivor Series: WarGames that left everybody stunned.At Survivor Series: WarGames, Dominik Mysterio walked in with a hometown advantage. While John Cena won the Intercontinental Championship in his hometown of Boston, Dominik wanted his own hometown match, and he got it at Survivor Series. Although interference from The Judgment Day was expected, it wasn't Liv Morgan who many anticipated would be making a return. Moreover, nobody could have expected how things would actually unfold.While the referee was down, all the drama unfolded. Liv Morgan returned, and instead of embracing Dominik Mysterio, she struck him, and in hindsight, it was a suspiciously weak strike. After that, she stared down at John Cena and went over to run and hug him, hinting at some sort of alliance. However, she would follow this up with a kick to Cena's nether regions, setting up Dominik Mysterio's victory. This was a huge ruse in disguise. You can watch the shocking sequence of events below:Morgan is officially back, and she is re-aligned with her on-screen boyfriend, "Dirty" Dom. In defeating the GOAT, Dominik Mysterio did something his father Rey Mysterio never could - dethrone Cena for a title.It was only 19 days that Dominik didn't hold his double champion status, and he is now firmly back on top. However, his reign as AAA Mega Champion is expected to be under threat as he is set to face his father at some point in the near future. It could be the main event of the AAA event, Guerra de Titanes, on December 20.Morgan could be making her way to Mexico to give Dominik Mysterio some support.