Breakup

A relationship breakup, or simply just breakup, is the termination of an intimate relationship by any means other than death. The act is commonly termed "dumping [someone]" in slang when it is initiated by one partner

[Breakups] can jeopardize one's health.” This description rings true to me: After the breakup, I felt physically ill, 

Breaking up is hard to do. Breakups hurt, and they can take more time than most of us would like to admit to get over.