Do guys pretend to forget things about a girl or what she said, in order to appear 'hard to get' ?

do men seriously have bad memory naturally, or do some men purposely act like they forgot a girls name for example, or something she said once that reappeared in a group convo, or some funny inside joke that he mentions how funny it is and how he can't remember who told him the joke...when in reality it was only between him and the girl..

do guys pretend to have bad memory? is it common in flirting?
Do guys pretend to forget things about a girl or what she said, in order to appear 'hard to get' ?
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