I fired our interior designer (good ones are few and far between).
First off, you're in a horrible room (near cube) and will suffer from severe dips/peaks at multiples of 53 Hz. So can you move the system to another room?
Second as mentioned above, proper stereo requires that you listen equal distance from both speakers. A possible/partial mitigating factor is to rearrange the furnishings (the interior designer she doesn't live with you does she?) to allow for a equal distance set up that is non-symetrically skewed to the room (still won't take care of dips/peaks below the Schneider frequency, about 170 Hz for your room, where sound transmission behavior transitions from waves to rays).
But frankly if you can't move to a different room, headphones is probably your best solution and just have a secondary system around for casual listening (and send those poor speakers to a good home - like mine

).