an unpleasant person who causes friendly people to become indifferent or unfriendly or hostile

an unpleasant person who causes friendly people to become indifferent or unfriendly or hostile

unfriendly behavior that causes anger or resentment

unfriendly behavior that causes anger or resentment

devoid of warmth and cordiality; expressive of unfriendliness or disdain

unfriendly behavior that causes anger or resentment

unfriendly behavior that causes anger or resentment

unfriendly behavior that causes anger or resentment

exclude from one's contacts on a social network site