A woman killed a cat by putting it in a washing machine after arguing with her boyfriend, a court has heard.
Paws died from heart failure after being put in the washing machine
Diane Hannon, 42, from Old Colwyn, Conwy, put the deaf cat, called Paws, on a full cycle after an argument with her boyfriend, who owned the pet.
The six-year-old cat suffered a heart attack, severe burns and loss of fur.
Hannon admitted causing unnecessary suffering and cruelly ill-treating an animal and was warned by Llandudno magistrates that she may face jail.
Her sentencing has been adjourned for reports until 10 January.
The court was told Hannon was cat-sitting at her boyfriend Duncan Carthy's flat in Colwyn Bay while he visited his son on 8 July.
The pair had argued about Mr Carthy's ex-wife and children.
Glen Murphy, prosecuting for the RSPCA, said: "Duncan Carthy called Miss Hannon and asked if the cat was all right, and she replied: 'I hate you. No, I've killed it.'
"Mr Carthy thought she was joking, but on Sunday at 3.30pm, when he returned to his flat, no one was there and he couldn't find the cat.
Diane Hannon said she did not mean to kill the cat
"He went into the kitchen and noticed his clothes were on top of the washing machine and found Paws inside the washing machine clearly dead."
Paws's injuries included scalding. He had died from heart failure.
When Mr Carthy phoned Hannon, she laughed and put the phone down, the court heard.
He later found a note she had written on the back of an envelope saying: "I hate you."
When interviewed by police, Hannon admitted that although she had placed the cat in the washing machine to hurt it, she did not know it would die.
Peter Brown, defending Hannon, said his client suffered from depression.
He added: "This is an upsetting case and, whatever happens, Miss Hannon has to live with what she did that day.
"She doesn't know why she did it."
He added: "Clearly for somebody to do this type of act, she certainly wasn't thinking coldly and calmly."
Llandudno magistrates warned Hannon that she may face prison when she is sentenced at the same court next month.