She suffered bruising to her right eye.
Waitokia returned on August 18, still agitated, and wanted her to get him a joint.
The following day Waitokia took their children and was reported to have had a gun and to have been looking for her.
He was arrested on August 22.
Judge David Cameron said Waitokia had a "very extensive criminal history" beginning in 1989, particularly for breaching the same protection order.
These latest convictions marked his fifth and sixth time for breaching that protection order.
Waitokia had been jailed twice for hitting his ex-partner: Four months for assault with a blunt instrument and three months in 2012 for male assaults female.
Judge Cameron sentenced Waitokia to six months in prison.