We hear OPs side of the story, but what exactly is your DS asking admissions? Is there a response required? My DD communicated periodically, but did not expect a response each time - she'd update with anything significant or noteworthy, such as I finished my app! (09/01) - response here, Good work HCopter mini-me! Then, I got into Genesis! (around the same time; no response), then See you at Genesis in a week and I made NMCommended! (no response). She did speak with AO a bit at Genesis. Then, here are my improved PFE scores and thank you for Genesis! (11/06 ish) (confirmation from administrator of PFE update, no response from AO). I'm sure she got the memos, and that was enough. She and DD don't need to be pen pals, and the goal is to get an appointment. Your package speaks loudest, not email rapport.
For every moment your admissions officer (the one at USCGA) spends on emails, she is NOT physically before the CCEB championing your application, or any of the 900 EAs that they are slogging through right now.