Imagine your OTP has been together for many years and even live together when one day person A comes home from work and person B suddenly announces that they want to break up. They have all of their things packed and are trying to leave the home, but person A won't let them leave until B explains why they so suddenly want to leave them, convinced that they did something wrong. 

Finally, B spills the beans and explains that A's just too good of a person for them to be with. 

How A reacts is up to you.