friends_remove_friend( int $initiator_userid, int $friend_userid )

function friends_remove_friend( $initiator_userid, $friend_userid ) {

	$friendship_id = BP_Friends_Friendship::get_friendship_id( $initiator_userid, $friend_userid );
	$friendship    = new BP_Friends_Friendship( $friendship_id );

	/**
	 * Fires before the deletion of a friendship activity item
	 * for the user who canceled the friendship.
	 *
	 * @since BuddyPress 1.5.0
	 *
	 * @param int $friendship_id    ID of the friendship object, if any, between a pair of users.
	 * @param int $initiator_userid ID of the friendship initiator.
	 * @param int $friend_userid    ID of the friend user.
	 */
	do_action( 'friends_before_friendship_delete', $friendship_id, $initiator_userid, $friend_userid );

	/**
	 * Fires before the friendship connection is removed.
	 *
	 * This hook is misleadingly named - the friendship is not yet deleted.
	 * This is your last chance to do something while the friendship exists.
	 *
	 * @since BuddyPress 1.0.0
	 *
	 * @param int $friendship_id    ID of the friendship object, if any, between a pair of users.
	 * @param int $initiator_userid ID of the friendship initiator.
	 * @param int $friend_userid    ID of the friend user.
	 */
	do_action( 'friends_friendship_deleted', $friendship_id, $initiator_userid, $friend_userid );

	if ( $friendship->delete() ) {
		friends_update_friend_totals( $initiator_userid, $friend_userid, 'remove' );

		/**
		 * Fires after the friendship connection is removed.
		 *
		 * @since BuddyPress 1.8.0
		 *
		 * @param int $initiator_userid ID of the friendship initiator.
		 * @param int $friend_userid    ID of the friend user.
		 */
		do_action( 'friends_friendship_post_delete', $initiator_userid, $friend_userid );

		return true;
	}

	return false;
}