the eighth episode of the second season of “And Just Like That” that made you go “And just like what?!”That was when a sweater-coated Carrie — after confessing to a bemused Miranda that she’s been having the best orgasms of her life with renewed love Aidan — drops an even bigger bomb.Stopping mid-stroll, Carrie takes a beat before admitting, “I’ve been asking myself, ‘Was Big a big mistake?’ ”Just like Miranda, we were speechless. Where did all that Big love go?Of course, Big — that’s John James Preston, as we found out in the first “Sex and the City” movie — was the man who Carrie chased around Manhattan in her Manolos for six seasons in the original show.