Respuesta :
I think it's that she is unsure whether she will be around to celebrate her birthday.
The answer is "She does not like to remember and celebrate her birthday"
The explanation for this answer is in the excerpt: "Andy determined that the speaker would mention his future birthday as if it had already happened" .
Andy does not want to let everyone know when it is the date of his future birthday, so he asks the speaker to announce his birthday on a date that has already happened, so she could avoid possible celebrations that her future birthday would bring.