Makes no sense, to be honest. What kind of absolute idiot would be trying to lull anyone into a sense of security by going at them with threats, dagger, and a suck.
I also don't get how he is pretending to be subservient. He is not. He thinks he's hot shit, which he isn't, but somehow the writing expects us to believe it anyhow. That's where the pathetic comes from.
Honestly, what you're describing is Zevran, who's basically Astarion but smoother and more intelligent, not as dumbly flamboyant, and thus much more likeable.
