“I became one of the tiger’s favourites”. Who is ‘I’ in the statement? Why did he think so?

‘I’, in the statement refers to the narrator of the story, Ruskin Bond.
He thought so because the tiger with a cunning look in his sparkling eyes and crouching his body came closer and closer to the author. He made a sudden rush towards his feet, rolled over on his back and kicked with a delight, and pretended to bite his ankles.

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