Aboriginal mother Constance Watcho did not seem like herself before she disappeared, her former long-term partner and father of three of her children says.
Ms Watcho's remains were found at the bottom of a cliff at Kangaroo Point in Brisbane in September 2018, but no one has been charged over her death.
A five-day inquest has been hearing from police officers, a medical expert and friends and family members in the Brisbane Coroners Court.
Darren Young described Ms Watcho as very straightforward and a loving mother, and said the pair remained on good terms after they split.
But something shifted before her disappearance, as Ms Watcho's mannerisms changed and they stopped talking like they used to, Mr Young told Wednesday's hearing.
He last saw Ms Watcho in November 2017 with her partner Sam Sobczak who was "a bit stand-offish", the court was told.
The last time she accessed her bank account was at the same time, having been released from prison on parole a few days prior.
Ms Watcho was known to couch surf and sleep rough, and had been staying at an apartment in Kangaroo Point with Mr Sobczak, the inquest was told on Monday.
Two other men lived in the unit, Paul Maclay and Dallas Bandman.
Ms Watcho's friend Anne Mickelo told the inquest on Tuesday that when she saw stories of the discovery of the remains in the news, she recognised a bag previously seen in the Kangaroo Point apartment.
She said she spent time with Ms Watcho between her release from jail and when she went missing, and said she was upset because she believed Mr Sobczak had been sleeping around.
The couple had been arguing, Ms Mickelo said.
On Monday, the inquest was told that Mr Maclay directed police to the location of Ms Watcho's remains in September 2018.
All three men are expected to give evidence.
The inquest continues.