It's bad to break up with someone over something trivial.
Chloe is eating a meal with her partner who is chewing loudly despite Chloe having told him she does not like that.
Chloe wants to stop hearing her partner eat loudly.
Chloe communicates clearly with her partner about how she would appreciate it if he would work on his habit of chewing loudly.
Chloe informs her partner that she has had enough of his loud chewing and that she is leaving him.
Chloe feels cared about when her partner makes an effort to curb the volume of his chewing.
Chloe finds herself alone and without a partner again and again because of behavior like this.