I was actually a pretty big fan of the romance to start with, I thought it portrayed a marriage of convenience slowly becoming more well. I got frustrated when their relationship increasingly became one of vassal and servant. Much of the interactions we see of Zenjirou and Aura is him making reports to her. The fact that the story is going to become a harem, with focus given to the next girl (look who gets the covers) doesn't say good things about the relationship between Zenjirou and Aura. It's just going to be more Aura imposing on Zenjirou, Zenjirou accepting said imposition as necessary and Aura worrying about when her imposing on Zenjirou will reach a breaking point but not actually working on improving things for him.
Something I find pretty frustrating is that Aura is pushing Zenjirou into getting a concubine, something he does not like, but a few times when he displays a rapport with a woman she is quick to squash it. Granted the few times it's happened the lady was politically nonviable, or at least undesirable, as a concubine, but shouldn't she be encouraging him? I would love it if they were monogamous, but Aura doesn't think that is viable.