A neighbour of Catherine Wells-Burr heard her tell boyfriend Rafal Nowak she did not know if she wanted to live with him anymore, a jury heard today.
Neighbour Ben Stone told Bristol Crown Court he heard an argument between the couple during an argument which he overheard just weeks before she was allegedly murdered.
Giving evidence, Mr Stone said: "I heard Catherine say to Mr Nowak that she didn't believe that he cared about her anymore and she didn't know if she wanted to share the house with him anymore."
Mr Stone said it had sounded like Nowak was trying to pacify Catherine, and that he had only heard the pair argue "once or twice more" during the time they lived there.
The body of the graduate was found in her burnt out car just off the A358 near Ashill - allegedly smothered by Nowak before his co-accused transported her to an isolated spot.
Nowak, his lover Anna Julia Lagwinowicz, 32, and her uncle Tadevesz Dmytryszyn, 38, each deny a charge of murder.
Witnesses also told the court that Catherine's red Ford Focus was missing the morning her body was discovered.
Neighbour Scarlett Misiankova said she noticed the vehicle was missing when she went for a cigarette at about 4.50am.
"I had noticed it was strange that the neigbour's car was missing, the red Ford," she said.
"When I woke up my friend Peter and we went out for my second cigarette the car was still missing.
"I told him 'do you notice there was something unusual here?' He said 'what do you mean?' and I told him the neighbour's car was missing. He said, 'yes, you are right.'"
Mr Stone said he too had seen the car missing at 6am when he opened his curtains.
The jury had previously heard how Nowak had told police that Catherine was alive, when he left for work at 5am that morning.
The jury had also previously been told Nowak allegedly smothered Catherine as she slept in bed, so he could benefit from her £123,000 life insurance.
Following the murder Nowak's lover, Lagwinowicz and her uncle Dmytryszyn, arrived at the two-bedroomed home to pick up the body and drove her to a field seven miles away in Ashill, it is alleged.
It is then claimed the pair moved her into the driving seat of her car, put the belt around her and ignited it with petrol.
The trial, expected to last another six weeks, continues.
