Ultimately, staying together requires selflessness on Lily’s part. She loves Ryle, so she works to hold a nuanced view of her husband where both good and bad can exist within him. In order to keep loving Ryle, she lets go of her justified anger at him and tries to separate her childhood trauma from her present situation. On top of shifting her own perspective, she also agrees to help Ryle learn to cope with his unpredictable emotions. Ryle, on the other hand, is not making these kinds of sacrifices for Lily. He isn’t bending over backward to empathize with her. He doesn’t silence his own trauma in order to help Lily deal with hers. Though Lily is the victim, she ends up putting in the majority of the effort it will take for them to make things work.