I had a dinner today as I watched my wife cooking. (I ate hiyashi-chuka (cold Chinese noodle).) Ion said Nelico-san had been teasing on her more than ever after she was married. Does Nelico-san envy Ion? Within characters in the story, I think someone like Glaykov is good for her.
Ion:
She grins and tells me things such as "Oh, newly-married Mrs. Lighthouse Keeper.""Welcome, madam."