As soon as James took his first staggering step outside the inn, his shaky legs got entangled with each other and he fell down. David helped him up and pleaded with him that they should stop. This was a very bad idea. They were drunk in the middle of the day which was bad enough, now he wants to go to some abandoned village outside Valgoor, it was an insane idea.
But James didn't back down. He insisted on going and when David denied his request, he started throwing a tantrum on the street. James started yelling at him that he lied to him. According to him, David lied to him about being his friend. After all, friends don't abandon their comrades in the middle of a quest.
How their outing became a quest was beyond David. But after seeing him throwing a tantrum, David then decided that it would be for the best if they visit this so-called village. This would win him a favor from James, as well as this may turn out to be a bonding moment for both of them…