Kim

“A fight like this was stunning, revealing not just how much he was on the lookout for enemies, but how she too was unable to abandon argument which escalated into rage. Neither of them would back off, they held bitterly to principles.

Can't you tolerate people being different, why is this so important?
If this isn't important, nothing is.

The air seemed to grow thick with loathing. All over a matter that could never be resolved. They went to bed speechless, parted speechless the next morning, and during the day were overtaken by fear - hers that he would never come home, his that when he did she would not be there. Their luck held, however. They came together in the late afternoon pale with contrition, shaking with love, like people who had narrowly escaped an earthquake and had been walking around in naked desolation.”
― Alice Munro, Hateship, Friendship, Courtship, Loveship, Marriage: Stories