Can i kill Astarion when we meet now (in dialogue) or avoid having to go through the ridiculous wrestling?
Nope ...
Once you start talking to him you are still forced to go the same old scene ...
Still have to fight, still have to accept the appology ...
Its kinda sad that you are allowed then to kill Gale who had no hostile intentions towards you ... and Laezel whos only sin is being Gith ... pretty racist if you ask me. :-/
But you never ever can attack the man who just litteraly tryed to cut your throat. -_-