I don't get it. If he's rude, what happens? If he's nice, what happens? Since there's no walkthrough we can use as a guide, which is the best path to follow, being rude or being nice?
And he keeps contradicting himself, yes, no, no, yes. Let's just stick with the blow to the head to make sense of this story.
The game could use a walkthrough mod, not to mention a good proofreader to make it less annoying to read.
How do you open that script, so I can fix it myself? They made it hard to open.
Also, I don't get that memory loss either. It looks more like the morning after a hangover.
Depending how much he drank, could be the reason why he don't remember, plain and simple.