No, Anne has been away from Amanda for a bit by the looks of it, from watching it it feels like Amanda's kids were at private school for a while and then have had to move to Anne's kids state school. Anne's self-esteem is quite low in some areas, she defers to Amanda in Motherland and at the start of episode one of Amandaland it seemed to me like she's got a bit of self-esteem back after being away from her. She reverts back to her old self as soon as she's got Amanda around again.
Loving the Mumsnet references!
I found it funny and the acting superb.