The two former 'Hills' co-stars recently rekindled their romance eight years after the couple ended their relationship - which was documented on reality TV show - and it has now been claimed the couple's second chance at love is hotting up by the day.
A source said: ''Audrina said she and Ryan are getting more serious and her friends think he's 'great'. Her friends and family ... they all love him and support them.''
Audrina, 32, split from her husband Corey Bohan - the father of her 22-month-old daughter Kirra - after just 10 months of marriage in March this year, and sources say she and Ryan could be looking to progress their romance to the next step once she is officially divorced.
They added to Us Weekly magazine: ''[Her friends and family] have known him for years, as they dated before. They are still taking it slow. She can't do anything too serious until she's divorced, which is taking longer than she wishes.''
Audrina's romance with Ryan, 35, comes after she previously she filed court documents seeking a restraining order against former beau Corey, and asked that his visitation rights to their daughter be stopped.
According to court documents, Audrina accused Corey of ''stalking'' her on social media and being ''angry, rude and emotionally abusive'' to Kirra.
The swimwear designer specifically discussed an alleged incident in which she claimed she was threatened by her estranged husband.
She stated in the documents: ''I am more afraid of him now than ever, and fear for the safety of our daughter Kirra when she is in his care.''
However, Corey filed a response to the claims, insisting there has been ''no domestic violence to justify'' a restraining order being put in place and their child is not in danger.
He also dismissed the allegation of stalking.
He stated in his documents: ''She has blocked me from viewing her accounts and I have blocked her from viewing my accounts.''
The 36-year-old BMX dirt bike rider claimed Audrina's filing was a way of ''purposely sabotaging'' his time with Kirra and asked the court to deny her request.