In the film's opening act, Maya had scripted a scene at a soccer game. Instead of the parents sitting on opposite sides of the bleachers, they were all in one row: the biological mom, the biological dad, and the new husband. The tension wasn’t found in screaming matches, but in the polite, agonizing silence of who gets to buy the post-game Gatorade.
A central theme in recent films is the lack of a biological roadmap. Characters must negotiate boundaries in real-time.