Jealousy*

Complex, full of rage and 
fear of abandonment
and humiliation
doing more harm than good
causing conflict and pain

* Inspired, in part, by the words in this description:

Jealousy is a complex emotion that encompasses many different kinds of feelings ranging from fear of abandonment to rage and humiliation. Jealousy can strike both men and women when a third-party threat to a valued relationship is perceived, it can be a problem among siblings competing for parental attention, or envy after a more successful friend. Conventional wisdom holds that jealousy is a necessary emotion because it preserves social bonds, but jealously usually does more harm than good, creating relationship conflict and strife. - https://www.psychologytoday.com/basics/jealousy