Berkline used to have that extra wide seat you are talking about, but as you can see right now no one is offering something like that. It is not very popular, and the reason for that is the fact that for two adults it would be too narrow and uncomfortable, and for one the armrests would be spread out to far - again not that comfortable.
You will definitely be better off getting a loveseat configuration in the middle. Both seats will independently recliner, and the modular removable armrest makes this configuration very flexible allowing to convert the loveseat into two seats with the armrest in between.
Fusion Collection Seating
Ultimate Home Entertainment