The boyfriend of Anabelle Falkholt has left a heartbreaking tribute to the "love of my life", describing her death as a "terrible nightmare".
Annabelle, 21, died in hospital on Friday, days after a fiery south coast crash which killed her parents and left her sister, Jessica, an actress, critically injured.
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Horrific crash victim dies from injuries
Annabelle Falkholt, the 21-year-old daughter of the couple that died in the horrific car accident on the Pacific Highway on Boxing day, has died from her injuries.
"Today I lost the love of my life," her boyfriend, Jordan Brohier, wrote on Facebook.
"I keep hoping I will wake up from this terrible nightmare and see her gorgeous eyes looking back at me.
"The past 48 hours have been the most painful thing I've ever been through, I'm shattered without my baby and I'm dreading the pain to come of not being able hold her in my arms, tell her I love her and hear her saying those words back to me."
He described the childcare worker who he met three years ago as a "kind, gentle soul" who was loved by everyone she met.
Jordan also pleaded with drivers to take care on the roads.
"You may not think it but a car is a deadly weapon if your mind isn't 100% concentrating on what you are doing. Be mindful of what you are doing when behind the wheel and constantly be aware of others around you too.
![Jordan Brohier with Annabelle who was killed in the crash on the south coast.](http://web.archive.org./web/20171230150333im_/https://www.fairfaxstatic.com.au/content/dam/images/h/0/b/j/n/2/image.related.articleLeadwide.620x349.h0bejc.png/1514572996923.jpg)
The accident happened after her family's car was hit head-on at the Princes Highway near Ulladulla. Annabelle and her sister were airlifted to Liverpool Hospital on Boxing Day.
Jessica, 28, continues to fight for life after she was pulled from the car before it burst into flames. Jessica is an actress and graduate of the National Institute of Dramatic Art, who has appeared in Home and Away.
![Jessica Falkholt, 28, remains in a critical condition in hospital.](http://web.archive.org./web/20171230150333im_/https://www.fairfaxstatic.com.au/content/dam/images/h/0/a/p/g/n/image.related.articleLeadNarrow.300x0.h0bejc.png/1514571559150.jpg)
Actress Jacqueline McKenzie who worked with Jessica on the feature Harmony posted her shock and concern at the tragedy on Twitter, saying she the two sisters were "in my heart and prayers".
She remained in a critical condition at St George Hospital on Friday afternoon.
The Falkholts were travelling back to Sydney after a short Christmas break when they came into the path of Craig Anthony Whitall, who was on his way home from a methadone clinic.
Whitall, 51, who was behind the wheel of the Toyota Prado, was killed on impact.
Jess is a brilliant, kind, beautiful actress with whom I had the very great pleasure of working on the feature 'Harmony', in which she had the lead role. Am keeping her and her sister in my heart and prayers. This is utterly devastating news. https://t.co/SqEODrsAKd
— jacqueline mckenzie (@JMcKenzie) December 28, 2017
Known to police, he was making the hour-long drive home to Ulladulla after visiting the clinic in Nowra on Boxing Day morning, police said.
About 50 kilometres into the 65-kilometre trip, as he neared the Bendalong turnoff, his four-wheel-drive failed to negotiate a sweeping left-hand bend and crashed into the Falkholts' vehicle.
Crash investigators are examining the cause of the accident and whether methadone played a part. Mr Whitall had advanced from red to green P plates two days before the crash, after previously losing his license.
Mr Whitall's son told Seven News his father had been his "hero" and his "idol", and he was sorry the crash happened.
"I wish them all the best and I'm really sorry," he said.
NSW Police urged drivers to slow down and take care on the roads, with Ms Falkholt's death bringing the NSW holiday road toll to 23.
A man who crashed his motorbike into a sign near Queanbeyan on Thursday night was the 22nd person to die on the state's roads since December 15.
Assistant Commissioner Michael Corboy from the Traffic and Highway Patrol Command, said there had been "too many" crashes this year.
"We are urging drivers to take responsibility for their actions and to slow down to ensure no more lives are lost this year," he said.
The state's premier, Gladys Berejiklian, said the deaths were "tragic".
"To lose anybody [at] any time is tragic, but especially at this time of year," she said. "My heart breaks every time I've heard of those tragic circumstances."
Ms Berejiklian said drivers must take responsibility for driving safely.
"No matter what rules are in place, when people do the wrong thing it has tragic consequences," she said.
Labor frontbencher Anthony Albanese called for a national drivers licence scheme, after concerns were raised about disqualified drivers being able to reapply for licenses in other states.
Operation Safe Arrival, the annual NSW Police road safety campaign, will continue until 11.59pm on January 1.
with AAP