This season "Crazy Ex Girlfriend" went deeper in on the nature of friendship. Part of that is Rebecca has now been there long enough that she has real friends in West Covina. But we also got to spend more time with Heather, see more of White Josh and Hector, Father Brah, Darryl, and watch Valencia and Rebecca bond over the mutual ex-Josh-ness. We watched Paula bond with new law school friends, especially Sunil, and look at how that changed her relationship with Rebecca, and her husband.
Some of this is of course because shaking up relationships makes for good TV, but ssh, no one wants to talk about that. (Well, except for the song they sing about the new guy.) But also, this is very true, friendships go through phases where you spend so much more time with one person, and invariably that has to come at the expense of something or someone else. Paula going to law school meant she needed friends who were going to law school. Rebecca needed people who had time to sympathize about her being dumped. Or just hang out and do single person things with.
Rebecca and Paula had bonded hard and fast over Rebecca's pursuit of Josh and once that was on hold, it was natural that they would have to reconfigure.
But the other thing that was apparent this season is that your friends are the ones that get you with all your flaws. Not exactly a revelation, but they demonstrated it over and over as they tried to step up and step in and help their friends. When Josh W. stepped in and tried to get Anna to look away from the amateur modeling at the club he was trying to help. Ultimately Anna and Josh were doomed as she began to realize that the refreshingly charming viewpoint Josh often brings to things, is also a lack of depth. Josh is a great guy, don't get me wrong. Josh W. knew it was doomed, but figured he could maybe save Josh for one more night.
So friends are the ones who even when they don't think you are making the best choices, try to save you from some of the fallout.