I have referred to the article below:
http://www.gmanetwork.com/news/opinion/content/520678/commentary-can-a-mistress-be-held-liable-under-the-law/story/
In highlights:
But the law is not as blinded by such passionate rage; the law assigns blame equally among all the
guilty.
In the case of a two-timing husband, he and his mistress can be jointly charged with concubinage if any of the following is present: (1) he keeps his mistress in the house he shares with his wife; or (2) he lives with his mistress in any other place; or (3) he has sexual intercourse with his mistress under scandalous circumstances.
Adultery and concubinage are criminal offenses. Anyone found guilty of these crimes may be imprisoned.
Furthermore, a husband's infidelity that causes mental or emotional suffering for his wife is considered psychological violence and is also actionable under the same law.
What if the mistress calls or sends text messages to the wife to taunt her about the affair, or uses the Internet to harass the wife through indelicate messages or comments, or posts intimate photos of herself and the cheating husband?
Does the law give an aggrieved spouse any recourse against such a paramour yet still preserve the family?
There are many remedies under the law, depending on the desired result.
To make a troublesome third party pay for their indiscretion and disruptive conduct, an aggrieved spouse may file a civil case for damages against the mistress or lover alone (no need to include the guilty spouse).
The basis for such a complaint is Article 26 of the Civil Code which gives the offended party a cause of action for a third party’s meddling with, or disturbing, a person's private life or family relations.
This cause of action is commonly called "alienation of affection." It seeks compensation for a third party’s malicious act of estranging a person from his/her lawfully wedded spouse or family.
In addition to the civil case for the payment of damages, there are several criminal cases an aggrieved spouse may file to seek imprisonment of a troublesome mistress or lover.
For malicious comments or posts on the Internet that tend to dishonor or ridicule the offended spouse, a criminal complaint for libel may be filed. If found guilty, the libelous paramour may be imprisoned or ordered to pay a fine, or both.
If, during a confrontation, the mistress or lover speaks harshly to the aggrieved spouse in a manner that shames or ridicules the latter, the offender may be charged with slander (oral defamation).
If a mistress receives an allowance or fancy gifts from a cheating husband, or if she is housed, clothed, and fed by him, the aggrieved wife may want to test the law by filing a criminal case of prostitution against such mistress.
Under the law, any woman who, for money or profit, habitually indulges in sexual intercourse or lascivious conduct is deemed to be a prostitute.
In any case, an aggrieved spouse may also file a civil complaint to recover any real or personal property given by his/her unfaithful spouse to a mistress or lover.
* please note that these are in my case.