Bri is jealous of her husband’s relationship with his coworker; she is unsure of his fidelity. her jealousy is a result of:

insecurities

Explanation:

Emotional insecurity or simply insecurity is state of uneasiness caused by impression of oneself, feeling inferior or something that threatens one's self-image or ego.

Bri might think that her husband finds his coworker more attractive or smarter. In essence she feels that her husband might find his coworker better than Bri. Bri thinks that she lacks the characteristics that her husband's coworker has, which makes Bri jealous.

a bad leader      

answer; /// decreasing responsiveness to a stimulus to which one is repeatedly exposed;