I agree Asim had shown us, he was a decent, respectful guy, mutually cordial with others, but soon he was drawn into the charm introduced by our noble hero, Mr Khan at WKV , so I think Asim got confused and become part of Shukla gang.
He has had flares of aggression which I put down to his youth and his Y chromosome.
I thought he felt a bit unsecured initially, that drew him towards a group. Main reason he was drawn to Shukla was his issue with Mahira, who made him her brother and later they had a few hitches here and there. And Shukla welcomed him bcoz he looked safe as a young guy, didn't expect him to ask too many questions.