He keeps mentioning his birthday?

So this guy I have a bit of a crush on has for the second week in a row mentioned that his birthday is coming up..over the past couple of years I would send him somewhat of a sexy birthday message (jokingly) and I know when his birthday is but he keeps mentioning that it's coming up...why? Does he want to make sure that I send him a birthday message...or is there another reason he is mentioning it?
He keeps mentioning his birthday?
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