Jealousy and Interpersonal Conflict

While trying to learn more the issues that people argue about, I took a look at the conflict books to see what they had to say about jealousy, figuring this surely is one of things people in an interpersonal relationship argue about. I took a look at what I think is a fair sampling of our texts on conflict and communication (specifically, I looked at Folger, Poole, and Stutman’s Working Through Conflict; Cahn and Abigail’s Managing Conflict through Communication; Canary, Cupach, and Messman’s Relationship Conflict; Ting-Toomey and Oetzel’s Managing Intercultural Conflict Effectively; and Wilmot and Hocker’s Interpersonal Conflict). Not one of them has an entry on jealousy in their index. Am I missing something?