We All Live Here by Jojo Moyes

Lila has a full house. Divorced, she lives with her two daughters--Celie and Violet--and her stepfather Bill, who doesn't like being alone after Lila's mother's death. When Gene, Lila's often absent father and semi-famous American actor, invites himself to stay, things get even more chaotic because Bill and Gene don't get along. Add to the mix that Lila's ex, Dan, lives not far away with his new partner Marja. That means that Lila sees Marja almost everyday on the school run. Lila is also on a deadline to hand in the first three chapters of the book she's writing, but she has writer's block. In typical Moyes style, the reader becomes immersed in Lila's life and those around her, hoping they all find the happiness they are looking for.