The 14-year-old actress - who is the subject of a guardianship battle between her mother Chrisoula Workman and older sister Shanelle Gray - has splitfrom 18-year-old Cameron Palatas, who she had been dating for less than six months.
This is the latest upset for the `Modern Family` star, who was removed from her mother `s home by child protective services for the second time and placed in her sister`s care last month.
The girls also secured a restraining order against their mother, forcing her to stay 100 yards away from the young actress at all times.
Ariel is said to have been previously removed from her mother`s care as a young child and placed in foster care by the Department of Children and Family Services.
Her mother has denied all allegations, saying: "It`s all untrue, it`s all untrue. I have my doctor`s letter that my daughter`s never been abused."
Ariel`s lawyer Amir Pichvai insists the actress is being well cared for as she deals with the custody issue.
He said: Ariel is doing well and she has a lot of people who are loving her and supporting her at this time, and I`m pretty confident that she`ll fare well through all of this. She is obviously a very smart and articulate young lady and an accomplished actress."