One thing i have noticed about Asim is that no matter how a female will talk badly to him or even abuse him verbally and / or physically, he very instinctively talks well with them. Yes we all know he is very articulate n he goes back to them in a respectful manner, without going personal or degrading them.
Also if they go physical with him, he literally never reacts. This chivalrous quality is what has lead to him not getting into rivalry with the females, though Shefali did try hard to get one going. It's like he knows he cannot cross a certain line with females. Also it's so rare, but IMO he's one male HMs that female respect and look up to when they need a support.
It's sweet and old fashioned n nowadays in this constant battle of the sexes and treating everyone equal, it's endearing to have this old fashioned trait and it's charming.