Why does he act like he forgot everything? Is he emotionally immature or narc?

He acts like we never were a thing, we never kissed or anything for that matter my name.

He was the one who was after me despite multiple rejections from me very single day. So there are 3 different narratives of me in his life

To me he acts like he don’t remember me
To his friends who know me - she slowly moved away from me

Ti his friends who don’t know me- she is chasing me

Why does he act like he forgot everything? Is he emotionally immature or narc?
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