A swing of a knife resulted in a Fleetwood man injuring his ex-partner when she returned to their flat.
A court was told that Ashley Hammil picked up a knife after it had initially been thrown near to where he was on a couch.
On realising he had injured the victim, he tried to give first aid and took her to get medical help.
Hammil, 21, of Windsor Terrace, Fleetwood, had pleaded guilty to an assault occasioning actual bodily harm.
David Clarke, prosecuting, said by May 25 last year the relationship effectively ended. The young woman left but returned to the flat next day to collect her belongings.
She started filling a bag with clothes and the defendant, who was on the couch, told her to go because it was his flat.
Mr Clarke told Preston Crown Court: “She acknowledges that at one stage she picked up a knife when in the kitchen and threw it near him, where he was on the couch.
“The defendant picked it up, with the quilt still around him, he walked over and stood facing her and moved his hand which was holding the knife at the time. He seems to have come into contact with her to the side.
“She was bleeding straight away. She went to a walk-in medical centre and later to A&E, where stitches were applied.
When arrested, Hammil said: “I know what I have done. I was just angry. She did it to me first”.
In his basis of plea to the court, the defendant said there had been a verbal disagreement.
She threw a plastic item at him, hitting him on the back.
He maintained that she also picked up a knife and started jabbing it into his leg, causing a minor mark.
She went on to throw the knife which landed to his side. Hammil then picked it up and swung it at her, intending to scare her and not to cause injury.
Julie Taylor, defending, said he and his former partner had been very immature. The relationship was now over. She said her client had only intended to frighten the victim.
Hammil was given a 12-month community order, involving 12 months’ supervision by probation.