Craig Brown argued that no-one had any right to criticise his service to Motherwell as he was unveiled as Aberdeen manager.
Brown quit his Fir Park role on Thursday night, 24 hours after publicly reaffirming his commitment to the club in the wake of interest from the Dons.
The 70-year-old had returned to Motherwell in December last year, initially as interim manager, but never signed a contract despite agreeing to stay for the long term. The former Scotland manager claims he had a verbal agreement that either party could end the relationship without compensation.
Motherwell chairman John Boyle has been angered by the manner of his departure, reporting Aberdeen to the Scottish Premier League for approaching Brown without consent. But Brown, who began his professional coaching career at Fir Park as assistant manager to Willie McLean, insists he has no reason to feel guilty over his departure.
"I was at Motherwell twice, I have a very great affection for Motherwell Football Club," he said. "I was there in the 70s, fourth in the league and two semi-finals.
"I have a great affection for Motherwell and I hope it's reciprocated. I don't see why it shouldn't be. The commitment I gave in the 70s and last year - we answered a call, we went to Motherwell and did our best, and we've answered a call here. I don't think it should be an issue."