| Quote #1
But of that – of that he [Raskolnikov] had no recollection, and yet every minute he felt that he had forgotten something he ought to remember. He worried and tormented himself trying to remember. (2.3.1)
When Raskolnikov wakes up from his illness, his reality is extremely confused. He's forgotten what we might assume he'd rather forget. But here we see that forgetting is actually causing him pain. Raskolnikov really wants to see life clearly. It's just that everything is so confusing that he can't sort it out.
| Quote #2
He [Razumihin] brought his fist down heavily on the kitchen stove, hurt his hand and sent one of the bricks flying. (3.2.1)
This is Razumihin's "morning after" moment. Even though we didn't see him do anything so awful, he beats himself up for talking too much and too crudely while drunk. He's also embarrassed about being drunk in front of Dounia. His reality while drunk conflicts with his reality while sober.
| Quote #3
And, of course, too, he [Pyotr Petrovitch Luzhin] did love Dounia in his own way; he already possessed her in his dreams – and all at once! No! The next day, the very next day, it must all be set right, smoothed over, settled. (4.3.3)
Luzhin needs a reality check, big time. Here he even admits that his fantasy or "dream" Dounia is nothing like the reality situation. That's "dramatic irony" in action. While we are aware that this is not "facing reality," Luzhin isn't. Dostoevsky shows him though, by soon removing him completely from the novel with no explanation.