They've hated us long before then, I first went to Pittodrie in 91 and the hatred was there. I think many of them felt that Ferguson and the 80's were the new normal and they'd always be top of the tree or thereabouts, Souness took that away from them, I like to think their treble runners up season finished them off in 93.
I hated Aberdeen games up till 86, they had a fantastic team and we rarely beat them, I was at secondary school in Dunoon from 82 till 88 and those first four years were tough, amazing the amount of Aberdeen fans back then in a wee West Coast town