(1) Rought is probably a typo, and the correct spelling is most likely "rough."
(2) This is a very literary sentence - something you'd see from a nineteenth century English novel (think Jane Eyre). In simpler English, the sentence means:
I may have become dour/bad-tempered through my education and upbringing, coarse through my passionate nature, but she was there to make me just a little bit gentler, although not quite as gentle as she is.