Mount & Blade: Warband

Mount & Blade: Warband

A World of Ice and Fire
Couple questions about the mod.
So I just started playing this mod, a lot of fun so far. Wanted to know if the Riverlands are supposed to be at war with the Westerlands and Allied to the North? If not, it would make sense if they were, as seen in the books and HBO series. It kinda bugs me seeing the Lannister armies having free reign to move through the Riverlands and harass Robbs Armies (Im signed on as a mercenary for the North)

Secondly, is there a way to do the questlines and such in Kings Landing, like does the Westerlands attitude towards the player get reduced after the Red Wedding or something?

Thirdly, does the Battle of the Bastards and Battle of Blackwater Bay happen in the course of the playthrough? just curious.