Report: Jaime Pressly Custody Battle Heats Up'My Name is Earl' star Jaime Pressly, who was recently arrested on suspicion of DUI and is facing close to $600,000 in tax liens from the IRS, has come up against another load of legal issues, reports.

The actress reportedly filed for divorce from her husband of 16 months, entertainment lawyer Simran Singh, just last week. Now she's facing further heartbreak at the hands of a former flame.

Pressly's former fiance, DJ Eric Cubiche, may seek custody of his 3-year-old son Dezi, who was born to Pressly while the couple were engaged.

Cubiche's mother, Nairis Calvo, says that the family's concern over Pressly's erratic behavior may force them to take legal action.

"Jaime and Eric have always had a nice relationship when it comes to my grandson Dezi, but that could change," says Calvo. "My son remains focused on Dezi ... We're very protective of Dezi and want nothing but the best for that precious boy."