Many sources in the industry said that the main reason for the divorce of the "Great Dieu 2014" couple was because "one side was stubborn and had unstable emotions", and at the same time took the example of the incident of "going hot in public at the airport and losing contact".
The source did not clearly state who was the stubborn and unstable person, but most of the public thought it was Tran Hieu.
Some information implies that Tran Hieu is cold, introverted, and promotes privacy, preferring to be alone. Tran Nghien Hy is an outsider, valuing the feeling of ceremony and companionship.
Therefore, after getting married, the romance gradually fades because the personalities of both sides are difficult to harmonize. Tran Nghien Hy once shared on television that she had never received a birthday gift since becoming Tran Hieu's wife.
Tran Hieu is even said to often use "cold violence" in married life, refuse to communicate, and block all means of communication with his wife.

After the wedding, Tran Nghien Hy gave up many career opportunities to focus on taking care of her family and children. She always wants her family to be united and surrounded. Tran Hieu often joined the film crew for a long time, leading to the two living apart for a long time.
At the end of 2023, Tran Hieu proposed a divorce and cut off all contact with Tran Nghien Hy. Even talking to each other was through assistants.
The climax that further aggravated the conflict between the couple was when Tran Nghien Hy's father passed away at the end of 2024, Tran Hieu was absent from the funeral, and there were no public condolences. This is the "last straw" that really breaks down a marriage.
In addition, outside rumors about Tran Nghien Hy are also said to be factors affecting Tran Hieu's trust in his wife.
Previously, Tran Nghien Hy was rumored to have an affair with a colleague when she was about to marry Tran Hieu. Although she had corrected, it still affected her relationship with her husband and wife later.
Tran Hieu and Tran Nghien Hy got married in 2016. After 9 years of living together, the couple divorced in February this year, and they are raising children together.
After the divorce, Tran Nghien Hy still developed his career mainly in mainland China, his son continued to study in Beijing. The audience once saw Tran Nghien Hy taking his child to a party alone, or taking him for a walk in the snow.
On the contrary, Tran Hieu rarely takes his children out. Although when he was filming "The Big Businessman", someone revealed that his son had visited Hoanh Diem to visit the film crew, and the relationship between father and daughter was still very good.