Apply $numpages to comment-page link

I have comments on a standard post as normal and only on the last page of a paginated post ( <!–nextpage–> ). I managed to change the permalink of comments_link on index, home, archive, search to include $numpages in the URL, but I can’t figure out how to do the same for next/previous_comments_link so that it says, for example, …post/3/comment-page-2/#comments

I used the following for comments_link…

function pf_comments_link( $permalink, $post_id ) {

global $multipage, $numpages;

	if ( $multipage ) {
		$pfCommentURL = get_permalink();
		$pfCommentLinkAnchor = '/#comments';
		$pfCommentLink = $pfCommentURL.$numpages.$pfCommentLinkAnchor;}

	else {
		$pfCommentURL = get_permalink();
		$pfCommentLinkAnchor = '#comments';
		$pfCommentLink = $pfCommentURL.$pfCommentLinkAnchor;}

	return $pfCommentLink;
}
add_filter( 'get_comments_link', 'pf_comments_link', 10, 2 );