Legal Advice

Spouses’ Mutual Desire to End Marriage Not Enough to Prove Collusion in Nullity of Marriage Cases

Published on July 4, 2026

Case: Republic v. Ramoran Wong (G.R. No. 276986, Third Division, Singh, J.)

 

In annulment and nullity cases, courts are always alert to one issue that can undermine the entire petition: collusion. But the Supreme Court is clear that not every agreement between spouses to end a marriage is collusion. The law draws a firm distinction between cooperation and fabrication.

 

What happened in plain terms:

The the case involved a husband and wife who both no longer wanted to continue their marriage. The question raised was whether their mutual willingness to end the relationship automatically meant they were colluding to manufacture grounds for nullity.

 

The core ruling you need to remember:

The Supreme Court ruled that a mutual desire to end a marriage is not, by itself, proof of collusion. Even if both spouses no longer oppose the petition, that alone does not mean they are fabricating evidence or agreeing to deceive the court. Collusion requires a deliberate agreement to simulate grounds for nullity, not just a shared decision to separate.

 

Practical playbook for clients:

  • For petitioners

    1. Do not rely on agreement alone

      Even if both spouses agree to the separation, you still need independent legal grounds supported by evidence.

    2. Present objective proof of the ground

      Psychological incapacity cases, for example, must stand on their own clinical or factual basis, not on mutual convenience.

    3. Avoid staged narratives

      Courts are trained to detect scripted testimonies. Consistency must come from facts, not coordination.

    For respondents

    1. Lack of opposition is not automatic defeat

      Choosing not to contest does not automatically validate the petition.

    2. Focus on the legal sufficiency of the petition

      Even unopposed cases must satisfy the strict requirements of law.

    For both parties

    1. Understand the role of the State

      Marriage is not purely private. The State has an interest, so courts will independently verify the grounds.

 

The takeaway:

The Supreme Court is reinforcing a key principle in family law litigation: consent to end a marriage is not the same as collusion to fabricate a case. Courts will not strike down a petition simply because both parties are aligned in wanting separation. The evidence must still stand on its own legal footing.

 

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A MUTUAL DESIRE TO END A MARRIAGE DOES NOT PROVE COLLUSION ALONE, BECAUSE IT REQUIRES A DELIBERATE SCHEME TO FABRICATE GROUNDS AND NOT JUST A MERE AGREEMENT TO SEPARATE.