I am writing a book and looking for some kind of figurative language to describe two people that are 'at odds' with each other.
When I say, 'at odds,' the context of my writing is: two characters that are constantly butting heads, one of whom doesn't trust the other, and so the relationship between the characters is always rough around the edges. They tend to find that they are on opposite sides of the argument in their small group of friends almost every time.
I think some kind of simile, metaphor, or other colorful language would be more appropriate in my writing, and I am coming up empty trying to collect some phrases that might be good substitutes. Thanks!