Now I understand what you meant and see your point.
You wrote: "we were asked if we wanted to eat with others and never once did" and I thought that you meant that they asked you and you said no, now I understand that they asked you and you said yes!
I have written on several other places on Cruisemates that for people who wants to share table with others, it can be a problem on NCL. You can always ask to share a table but as you said, most NCL passengers want to sit with those they travel with so it can be hard for NCL to find someone who wants to share a table.
I don't think that the host/hostess didn't do anything about it, they just can't do much if noone else wants to share!
I do see your point and understand your problem, I just missunderstood you from the beginning!