Auerbach split from Stephanie Gonis earlier this year (13), and now they have filed legal documents to end their union.
In the paperwork, the musician accuses his former partner of trying to commit suicide by slashing her legs in front of their young daughter, Sadie, while Gonis claims she was pushed to harm herself after years of turmoil in the couple's relationship.
According to documents, obtained by Tmz.com, Gonis has admitted herself to a treatment centre in a bid to overcome her issues.
Auerbach has been handed temporary custody of their little girl, while Gonis has supervised visitation rights.
It is not the only messy court battle Auerbach is caught up in - he was named in rock rival Jack White's custody suit against Karen Elson as The White Stripes star doesn't want his kids attending the same school as Sadie.
The request comes after years of resentment between Auerbach and White, who accuses The Black Keys star of copying the music and moniker idea of his own former duo, The White Stripes.