Hostile to Rivalry; Worries About Unfaithfulness
This page is the CodyCross answer for the clue below from Under the sea, Group 21, Puzzle 3.
Question is: Hostile to Rivalry; Worries About Unfaithfulness
and the answer is: JEALOUS
Word Meaning:
JEALOUS — Suspecting rivalry in love; troubled by worries that one might have been replaced in someone's affections; suspicious of a lover's or spouse's fidelity.
Definitions from Wiktionary.