Larman made this statement during an interview with the Royally Us podcast, where he warned that if Harry snubs the Coronation invite, he may never have any relationship with his family ever again.
Larman believes that Harry's new life is completely different from his old one, and there is no possibility of him coming back to Britain to lead a normal life.
While there has been a lot of discussion and speculation about whether Harry and Meghan will attend the Coronation, Larman thinks that at least Harry will attend. If he doesn't, he will essentially be saying that he has no interest in having any relationship with his family in the future.
In summary, Prince Harry appears to be aware that there is no going back to his old life, and experts warn that he risks losing his relationship with his family if he snubs the Coronation invite.
