Aljaz Bedene insists he has not let anyone down by switching his allegiance back to Slovenia.
The world number 51 became a British citizen in 2015, but has once again opted to play for his country of birth from the start of this year.
The 28-year-old is desperate to compete at the 2020 Tokyo Olympics.
A change in International Tennis Federation rules had prevented him representing Britain in either the Olympics or Davis Cup.
He describes his time in British colours as a "great journey, with a bad ending".
"It wasn't because I didn't like Britain, because I really wanted to play for Great Britain," he told BBC Sport as he spoke about his decision for the first time.