Richard’s mother Trix unexpectedly arrives on Richard’s birthday, both to visit her son and take care of some business. Emily is horrified and begins having a meltdown, but Lorelai decides to support her mother through this crisis. Previously she took a slightly malicious pleasure in watching her grandmother torture her mother – on the last visit, which took place in “The Third Lorelai”, Trix also ended up disgusted with Lorelai, so it seems that she now sees her mother’s point of view a little better.
The Annotated Gilmore Girls 