I think Admiral, you should have gone to another store, presumable one your wife doesn't work at

(lol) I think he hope for some discount or just want to see his wife work.

considering that he's buying another (provisional) wedding ring, neither of those seems especially likely

Hmm.. now, I look it again. I think that's just some material, akashi look like because her admiral want another married (provisional) with another ship girl. Oh come on admiral, akashi just want to be the only one for you.