A jealous lover went berserk after believing his on-off partner flouted lockdown rules to see another man.
Edward Harrison turned on Frances Ferguson at her home in Glasgow’s Blackhill in April.
The 35-year-old also trashed her car before attacking three police officers when they turned up to tackle him.
Harrison faces jail after he admitted acting in a threatening manner, three assaults as well as dangerous driving.
He had initially been living with 30-year-old Miss Ferguson during lockdown.
Harrison eventually left but then stormed back in the early hours one morning and thumped on the door.
He then smashed a Ford Ecosport outside with a pole before police arrived.
Harrison jumped into a Ford Kuga, which he soon crashed after losing control.
After getting out the car, he screamed at officers: “You want to fight? Come on then.”
Glasgow Sheriff Court heard crazed Harrison bit and kicked one female officer, hit another and then booted and punched a male constable.
His lawyer said Harrison believed he had earlier been “taunted” by Miss Ferguson on social media about another man.
Calum Weir, defending, added: “She broke the lockdown rules at an early stage to spend the night with this individual.
“He thought this put his family at risk and this was the last straw for Mr Harrison.
“He was upset and angry and attended the home.”
Sheriff Joseph Platt remanded Harrison in custody as sentencing was deferred for reports.
