A man has been found guilty of fatally stabbing his girlfriend and leaving her lying on the floor with a blood-soaked washcloth covering her wounds.

She had sustained multiple stabs to her heart and lungs using a kitchen knife, which was discovered in the sink stained with blood, as stated by crown prosecutor Daniel Boyle.

Those allegations were accepted by jurors, who deliberated for little more than two hours today before finding Eriksen guilty of murder.

The jurors were told the de facto couple got into an argument after Fenwick sent Eriksen a text message with a link to a house-sharing website.

Fenwick was insistent that Eriksen move out of their Mascot apartment after she supported him for several years while he was unemployed.

Her friends testified that Fenwick had confided in them about her concerns and frustrations with Eriksen in the lead-up to her death.

“I am fearful of Tony. That is why I am telling you this,” she texted one friend.

“I just (need) to have a record if something happens to me.”

Paramedics testified in court that they found Fenwick suffering from numerous stab injuries to her chest, abdomen, and right arm, which they described as “incompatible with life”.

When first responders reached the location, Eriksen was in a bathrobe, with dry blood on his face, wrist, and right foot, the court heard.

In a triple-zero call, the jury heard Eriksen told the operator he had got into an argument with Fenwick and he had “put a knife in her”.

He will face sentencing at a later date.