What if since Regina cast the first curse then she’s the only one who can stop the second one therefore this,
is her stopping the curse even though she knows she will/can die and thats when we’ll get our hug. Which might explain this,
and the whole next half of the season is Emma trying to find a way to bring her back because she promised Henry she will and the next season finale is Emma kissing Regina and breaking the curse. AND BAM BITCH SWAN QUEEN IS ENDGAME!