He was suspended following a training ground bust-up with Warburton and team-mate Andy Halliday only days after the 5-1 trouncing from Celtic at Parkhead on September 10.
“The only regret I’ve got is not playing football now. No player wants to miss football when they’re fit, especially not when you’re 34 and you don’t have another 10
years to play and everyone else is playing football and you are like: ‘I would really like to be doing that right now’.
“My last game for Rangers was a defeat in the Old Firm at Celtic Park. Nobody wants to do that, nobody wants to play eight games for a club.
“I’ve got no issues with Rangers, Rangers is a fantastic football club. I have no issues with Mark Warburton, no issues with Davie Weir, no issues with anyone on the board.
“Life is too short to look back and hold on to things and think: ‘If I could have played that way, or done it that way, this would have happened’.”
Barton, who has been training with his former Turf Moor outfit, added: “I’m focusing on the future, I’ve still got that bit about me where I step back south of the border and have an enormous amount of credibility and people want me to come to the football club.
“My phone has rung a number of times about where I’m going to be in January, so I’m lucky.”