Confrontational - Tending to deal with situations in an aggressive or argumentative way.

feud - Take part in a prolonged quarrel or conflict

testy - Easily irritated; impatient and somewhat bad-tempered

undermine - To weaken or damage something, especially gradually or secretly; to sabotage or erode the foundation or support.

snub - An act of showing disdain or a lack of cordiality by rebuffing or ignoring someone or something

Chastise - To scold or criticize someone severely for doing something wrong.

pry - Inquire too closely into a person's private affairs

slur - An insinuation or allegation about someone that is likely to insult them or damage their reputation

spurn - Reject with disdain or contempt

Abandon - To leave someone or something behind permanently or without intending to return.

Confront - To deal directly with a problem or difficult situation or person.

snide - Making derogatory or mocking comments about someone in an indirect way