In the Philippines, the dissolution of a romantic relationship often brings to light the thorny issue of financial recovery. Whether it involves "loans" between partners, investments in a shared property, or support provided during the cohabitation, the legal pathway for recovery depends heavily on the nature of the relationship and the legal characterization of the funds spent.

1. Classification of the Relationship

The available remedies are dictated by whether the parties were in a "Common-Law" relationship or simply "Dating."

Article 147 (Family Code): Governs unions between a man and a woman who are capacitated to marry each other and live exclusively with each other as husband and wife without the benefit of marriage.
Article 148 (Family Code): Governs unions where parties are incapacitated to marry (e.g., adulterous relationships or bigamous unions).
No Cohabitation: If there was no "living together" as husband and wife, the Family Code provisions on property usually do not apply, and the Civil Code on contracts and quasi-contracts governs.

2. Recovery under Property Regimes of Unions Without Marriage

Under Article 147 (Capacitated to Marry)

The Rule of Co-ownership: Properties acquired by both parties through their joint efforts, work, or industry are owned by them in equal shares.
Efforts of the "Home-manager": Even if one party did not contribute financially, if they cared for the family and the household, they are deemed to have contributed to the acquisition of property.
Remedy: An Action for Partition. If one partner spent money to buy a house or car registered in the other's name, they can sue for their 50% share, provided they can prove cohabitation and that the asset was acquired during the union.

Under Article 148 (Incapacitated to Marry)

Actual Contribution Required: Unlike Article 147, there is no presumption of equal sharing. Only the property acquired by both through their actual joint contribution of money, property, or industry shall be owned by them in common in proportion to their respective contributions.
Remedy: The claimant must provide a clear paper trail (receipts, bank transfers) to prove the exact amount spent. Without proof of actual contribution, the property belongs to the person named on the title or deed.

3. Recovery Based on Loans and Contracts

If the money spent was intended as a loan rather than a gift or a contribution to a shared asset, the legal basis is the Civil Code on Obligations and Contracts.

The "Gift" Presumption: In the absence of a written agreement, the court may view money spent during a relationship as a "donation" (gift) motivated by "pure liberality."
Action for Sum of Money: To recover a loan, the plaintiff must prove the existence of the debt. While oral contracts are valid, Article 1358 of the Civil Code requires that contracts involving amounts exceeding P500 must appear in writing (even a private one) to be easily enforceable.
Small Claims Court: If the amount is P1,000,000 or less (excluding interest and costs), the remedy is to file a Statement of Claim in Small Claims Court. This is an expedited process where lawyers are not allowed to represent parties in the hearing.

4. Recovery Based on "Unjust Enrichment"

If there is no contract or specific co-ownership rule, the principle of Accion in Rem Verso (Unjust Enrichment) under Article 22 of the Civil Code may apply:

"Every person who through an act of performance by another, or any other means, acquires or comes into possession of something at the expense of the latter without just or legal ground, shall return the same to him."

Requirements for Recovery:

The defendant has been enriched.
The plaintiff has suffered a loss.
The enrichment is without just or legal ground.
The plaintiff has no other action based on contract, quasi-contract, crime, or quasi-delict.

5. Conditional Donations (Donations Propter Nuptias)

If money or property was given in consideration of a future marriage (e.g., a dowry, a house for the future wedding), and the marriage does not take place, the donation may be revoked.

Article 86 (Family Code): A donation by reason of marriage may be revoked if the marriage is not celebrated, or the judicially established marriage settlement is agreed upon but the marriage does not take place.

6. Evidentiary Challenges

The biggest hurdle in these cases is the "Love Defense." Courts are often wary of "liquidating" a failed romance. To succeed, the claimant must present:

Documentary Evidence: Bank statements, GCash screenshots, wire transfers, or written acknowledgments of debt.
Testimonial Evidence: Witnesses who can verify that the money was a loan or intended for a specific investment.
Demand Letter: A formal written demand to pay is usually a jurisdictional requirement before filing a court case for a sum of money.

Summary Table of Remedies

Scenario	Legal Basis	Primary Remedy
Loaned money to an ex	Civil Code (Contracts)	Action for Sum of Money / Small Claims
Bought a house together (Common-law)	Art. 147/148, Family Code	Judicial Partition of Property
Gave money for a wedding that failed	Art. 86, Family Code	Revocation of Donation
Ex kept money meant for a business	Art. 22, Civil Code	Action for Unjust Enrichment