Rel next and rel prev is telling google bot to index these pages and make search visible the first page. But nofollow tag is telling googlebot to don’t crawl the subpages so it looks like you have an conflict here?
Hi,
If you block google bot to index your other pages for categories, most of your products on that pages can’t be indexes by google. so we add the rel=”next” to indicate google bot to index products from other pages.
Best regards.