Couples rarely become unwell because of one major conflict. They suffer from dozens of small conversations that never happened.
1. Set a time. An emotional ambush creates defense, not dialogue. 2. Talk about facts, not character. 3. Say what you feel and need. 4. End with a small, verifiable agreement.
At the end, pray together. Prayer does not replace the agreement, but it puts both of you on the same side of the table.