Actually, you should say something if you hate your friend’s partner

Arrogant selfish person in crown making group of people annoyed and angry. Lonely girl having behavior problems. Vector illustration for aggressive society, bad communication concept

It’s not that Sammy didn’t like Natalie at first. 

She was nice enough. It was only after Natalie started dating Sammy’s best guy friend and roommate, Dan, that things got tense. Sammy, Natalie, and Dan were part of the same grad school cohort when Natalie and Dan got together. Sammy, now 33, got the sense that Natalie and Dan were on different pages.