He doesn't really pop up again for a while in the LN, the potion class is volume 1 Ch 6 of the LN and the fight they had is Ch 5, but when Ard runs into him again in Ch30, he's basically done a full 180 and has become a decent guy instead of an asshole, he even becomes friendly with Ard, though he isn't around a lot in the first 2 volumes, it's basically just part of Ch4 through Ch5 and then a 2 or 3 pages of Ch30. He feels very guilty about how he treated Ginny, and says he plans to become a better person and thanks Ard for kicking his ass and teaching him a lesson.