The Drugging of Abby...

 So they straight up re-wrote the scene and NOT just to accomdate Marci as Abby.

When we first saw the scene there was (a) no Julie and (b) Abby/Chad were sitting on the bar stool type seats that Chad was at w/Gwen a few weeks ago/where Gwen was during the flashback.  They were NOT at a table - AND they thought Gabi did it b/c she grabbed the bottle from Chad's hands.   

Sorry writers - but this isn't a hair style glitch in the editing room - you straigh up re-wrote the scene to fit what you needed it to.  I feel like Annie in Misery when she was torturing Paul LOL