EVERY day since her daughter Renae disappeared 11 months ago, Teresa Marsden clings to the hope that she will walk through the door or pick up a phone and call.
"Her motto was family comes first and everything else comes after," Mrs Marsden said.
"That's why this is so out of character for her not to get in contact."
Determined that her daughter is still alive, Mrs Marsden recently visited Byron Bay and placed posters in cafes about Renae in the hope someone had seen her.
"My heart tells me if she picks up this poster she will see it and say, 'I have got my family still there to support me'."
Mrs Marsden said she believed Renae may have fled Sydney to escape threats from an "obsessed friend".
With her 21st approaching, Mrs Marsden said Renae was studying in the hope of moving into forensics and had plans to move to a unit in the city, was excited about going on a cruise and was loving life.
She was captured on CCTV near her intended venue, but never made her dinner appointment and hasn't been seen since.
Her car was found by police nearby, locked, but without the usual personal items and clothes she carried.
Mrs Marsden said her last contact with Renae was a text message that said, "you are my best friend and I love you", which wasn't out of character.
Two weeks before her disappearance, Mrs Marsden said she, Renae and some friends enjoyed a Pink concert together.
But problems with an "obsessed friend", who had been troubling Renae on and off for more than five years, had resurfaced.
"A couple of weeks before going missing Renae said she was frightened by a certain person," Mrs Marsden said.
"But she said to me don't worry mum 'because I have told this person I don't want anything more to do with them in my life'.
"She tried for nearly six years to get away from this person; she changed her phone number and about the only thing we didn't do is move house."
She said police had investigated the "friend" but didn't find sufficient evidence to lay charges.
A police media spokesman said police had just completed a brief of evidence for the coroner.
"It is now up to the coroner to review the evidence," the spokesman said.