Alex & Jason were at Lindsay's birthday party...

This is so weird. Didn't someone on the cast specifically say Alex wasn't going to be there that weekend for Lindsay's birthday? On top of that, Lindsay's boy from Winter House (Jason) was also at her party. (Both photographed being there — see: the egg/fertility balloons in this Instagram:

Why would they hide Alex? He's already a non-event... Is he that much of a disruptor that they had to cut him out completely?

Jason, I kinda get. That's messy and with Austen there, they couldn't have too many storylines.