At the beginning of the novel, Albert is a violent and controlling man. He beats Celie regularly, and he constantly berates her. He also refuses to allow her to have any say in her life, and he keeps her isolated from the outside world. Albert's behavior is driven by his own insecurities, and he uses violence to maintain control over Celie.
However, as the novel progresses, Albert begins to change. He starts to spend more time with Celie, and he begins to listen to her. Celie's kindness and strength have a profound impact on Albert, and he starts to realize that he has been wrong to treat her the way he has. Albert's transformation is also aided by the influence of Shug Avery, a charismatic singer who becomes Celie's friend. Shug Avery teaches Albert about the importance of love and compassion, and she helps him to see the world from a different perspective.
Finally, Albert's own experiences also contribute to his change. He is forced to confront his own demons when he is attacked by a group of white men. This experience makes him realize that he is not as powerful as he thought he was, and it forces him to acknowledge his own vulnerability.
As Albert changes, so does his relationship with Celie. He becomes less controlling and more supportive, and he starts to treat her with respect. Celie is able to finally blossom as a person, and she finds her own voice. The transformation of Albert and Celie's relationship is a testament to the power of love and forgiveness.