I'm not Shady, but it is an important thing to understand that front wall placements are not always the best for good quality bass. Likewise, with an open floor plan, another important consideration is that Low Frequency Soundwaves will be affected by the
total open-room volume the Subwoofer is exposed too, not just the arbitrary dimensions of a user-defined listening area.
While most here will agree that multiple Subs are usually preferred in any HT or Music setup, proper placement of them for best acoustic effect is a necessity. Of course, having said that, I fully understand that what the room acoustics dictate is not always in line with the livability issue.
We all have imperfections and limits in our rooms (and yes, I expect a good number of custom built dedicated rooms share this unfortunate reality, too!). In light of this, we do have to work with what we have.
I get it.
With all of that in mind, I would absolutely recommend against almost any sealed subwoofer you are likely to consider due to SAF. You will sacrifice a great deal of output where it matters most just due to the open plan of your home and the physics involved in the performance of such small enclosures. Two PB1000 Pros or perhaps 2 PB/PC 2000 Pros would serve you far better from a pure performance aspect.
Hopefully you are able to find a mutually beneficial middle ground where your Lady and your HT can coexist!