Dealing with a spouse who breaks up during fights but later acts normal requires addressing the emotional instability: 1. Communicate clearly about the impact of this behavior on your emotional well-being. 2. Set firm boundaries about what constitutes a break-up and reconciliation. 3. Seek to understand the underlying reasons for this pattern of behavior. 4. Suggest couples therapy to improve communication and conflict resolution. 5. Work on developing healthier ways to express anger and frustration. 6. Consider whether this behavior is a form of emotional manipulation. 7. Take time to process your own emotions after these incidents. 8. Discuss the need for consistency in your relationship status. 9. Encourage your spouse to seek individual therapy if needed. 10. Evaluate whether this relationship dynamic is sustainable for your long-term happiness.