AceShowbiz - Dave Grohl, frontman of the Foo Fighters, has been under fire since his recent revelation that he fathered a child outside of his 21-year marriage to Jordyn Blum. His ex-girlfriend, Kari Wuhrer, has come forward to criticize Grohl, labelling him a "scumbag" and "serial cheater."

Wuhrer, who dated Grohl in the late 1990s, claims to have heard "rumblings" of Grohl's alleged infidelity for years. She alleges that he pursued a relationship with her while still dating snowboarder Tina Basich. Wuhrer claims to have accidentally exposed Grohl's two-timing ways during an interview on "The Howard Stern Show", which led to Basich's discovery and a subsequent breakup.

Meanwhile, Grohl's wife, Jordyn Blum, has remained largely silent since his confession. However, sources close to her believe she may have known about his past infidelities, but not the extent of them. The sources speculate that Grohl's recent revelation was not an isolated incident.

Adding to the drama, Grohl has been reportedly jealous of his wife's relationship with her married tennis coach, Christopher Crabb. The Daily Mail claimed that Grohl suspected a "flirty" connection between Blum and Crabb. However, sources deny these accusations, stating that Crabb is married to a friend of Blum's.

Blum is reportedly considering a lucrative book deal that would detail her experiences in their marriage, including her efforts to maintain it for the sake of their three daughters. Grohl has released a statement expressing his love for his wife and children and his desire to regain their trust and forgiveness.