A man was seen grabbing a woman by the scruff of her neck and pushing her against a fence.
Christopher Rainey, 38, of Martindale Avenue, Fleetwood, was found guilty of assault after a trial in his absence.
He admitted breaching bail by failing to attend the trial.
Pam Smith, prosecuting, said that on August 20 a woman heard shouting on Medlock Avenue, Fleetwood, and saw Rainey assault his ex. Rainey was bailed for pre-sentence reports by District Judge Jeff Brailsford at Blackpool Magistrates’ Court.