You can sue any third party for alienation of affection if their actions diminish the love and affection that your spouse has for you. However, these lawsuits are expensive and hard to prove. Your spouse had a choice of whether or not to put up with her actions and he chose to do so. He could have taken his ex-spouse to court and used legal measures to get custody of his children and address her negative actions. Given this information, I do not know how successful you would be with a lawsuit for Alienation of Affection.
Helena M. Nevicosi
Attorney with Rosen Law Firm
4101 Lake Boone Trail, Suite 500
Raleigh, North Carolina 27607
919.787.6668 main phone
919.256.1665 direct fax
10925 David Taylor Drive, Suite 100
Charlotte, North Carolina 28262
704.644.2831 main voice
704.307.4595 main fax
1829 East Franklin Street, Bldg 600
Chapel Hill, NC 27514
919.321.0780 main phone
919.787.6668 main fax
The response posted above is based upon the limited factual information made available and is not intended as a full and complete response to the question. The only reliable manner to obtain complete and adequate legal advice is to consult with an attorney, fully explain your situation, and allow the attorney sufficient opportunity to research the applicable law and facts required to render an accurate opinion. The basic information provided above is intended as a public service but a full discussion with an attorney should be undertaken before taking any action.