According to a source, "She had left Matthew several months back". "Their married friends would joke that they were jealous of their relationship".
The mag reports that things weren't always what they seemed on the surface and that they really stayed together for their daughter, Makena, 13. News of the 54-year-old actress and 56-year-old writer-producer. No official announcement has been made at this time.
An insider told In Touch, who first reported the news, that Hunt and Carnahan's breakup was "very messy" and that the actress "was convinced Matthew had strayed".
The couple reportedly had their off moments over the years.
The break up comes two years after Hunt announced that she and Carnahan were developing a TV series together, but she hasn't spoken of the project since.