The rocker asked his girlfriend Beth Thom to be his wife over the weekend (18-19Jul15) and she took to Instagram to post a photo of her new engagement ring.
Spitz and his ex-wife Candi filed for divorce last year (14) after he was arrested in Florida following a reported domestic violence incident.
His then mother-in-law called the police to report the 52-year-old musician, who was allegedly trying to choke her daughter.
The charges were eventually dropped.
The guitarist's new fiancee was previously married to Warbeast star Scott Shelby, according to Blabbermouth.net.
Spitz was part of Anthrax a decade ago. He left the band following the band's split with singer Joey Belladonna.