Answer:
It demonstrates that you have thoroughly explored the topic, and that you are aware of alternate points of view. By addressing or refuting the counterclaims logically, you gain credibility for your argument.
Explanation:
The answer is that he was upset because Renee was supposed to do the heavy (yell and scream at Bella for making bad choices) but doesn't. So Charlie went moping around till the wedding came so technically he was upset that Renee hadn't rat Bella out.
Montresor offers him wine because he needs to get him drunk first before he's able to easily kill him.
