To be honest I wasn’t sure I liked this bit, it didn’t really make sense next to when the tardis said that she stole herself a timelord. (Which was one of my favourite lines, in one of my favourite episodes of doctor who).
He could’ve told Clara to piss off though. Which One’s known for.
The G.I. rewrote the Doctors timeline. He made the Doctor chose the wrong Tardis. Clara just puts it right again. She knows Sexy has chosen the Doctor, so basically nothing really changed. The Tardis still “stole” the Doctor.