Regret from last year

Is it OK if I confess one thing I've been keeping in my mind since I still cannot get to sleep ? ?

That is . . .
After I finished writing the 1st message on 28/Dec I received an email from a woman whose surname begins with "K" saying like "Today is my birthday but nobody celebrates me ! Hikki, Pleeease give me just one word -- !" and I wrote "Congrats to K-san" at the end of the next message, but . . .

. . . I've got no response from this K-san so far --

Weeeeeeep

Or probably I am missing her mail ?!
Wonder if she's noticed that . . .

Oh I don't feel clear about this !