To address selfishness in a husband, couples should seek support from a marriage counselor, who can assist in setting boundaries and improving communication. Understanding the significance of selfishness and its impact on relationships is crucial. Practical steps include setting clear expectations, confronting selfishness with assertiveness, and enforcing consequences. Tools like marriage counseling and communication exercises can facilitate effective dialogue and understanding. The focus should be on fostering equality, respect, and emotional maturity, ensuring a healthy and balanced relationship.