[ Astarion frowns, more at Iorveth moving away than anything he's said. He reaches out, urging him back with an insistent tug. It had felt good to have Iorveth, weary and drained, leaning on him for support, and he doesn't give up things that feel good easily. After all, there are so very few of them. ]

I'm not going to challenge him to fisticuffs. I'm going to get a new dagger first.

[ His tone practically screams 'duh'. Once he actually has a weapon and the opportunity to get the drop on Henrik, he's confident he'll come out of that scuffle the victor. Iorveth would be correct, though, in assuming that 'get dagger' and 'stab Henrik' are the only two points in his plan for revenge; the entire middle is a big question mark.

An unimportant detail. He'll wing it. ]

And you don't have to be jealous. [ Said as if there's any chance that that's the issue Iorveth has with this. ] I won't drink a single drop of his blood.