“Twilight, I’m worried about you. You haven’t opened the library in days. We’ve never been closed on a Sunday before! You’ve blown up more sciencey... things in the past three days than you have in the last three years! Seriously, you got out more back when we lived in Canterlot! You didn’t even go to Berry Punch’s memorial.” 

Context: Spike is voicing his concern for Twilight's well-being, because she has isolated herself for days after finding the first victim's body in the forest.

“You don’t get it, do you? Every time I go to sleep, that could be it! I might not wake up for a hundred years! Why do you think I stayed up so late yesterday?! You weren’t there that morning, you didn’t... you didn't see Twi... I... I can’t, okay? I can’t let my last memory of my friends... my family, be of them crying. I just can’t.” 

Context: Agent Bentgrass asked Spike why he is not telling his friends about his upcoming 100 year sleep that he can't stop. He's angrily explaining why he's keeping it from them.

“You’re right. And you know what? You could do what you’re doing now and just cry about it. Tell me, is that what you’re going to do when I leave? Is it? Are you going to mope around for the rest of your life? Because if you do, so help me Celestia, I will find a way to bring you back to life, just so I can yell at you.” 

Context: Following something tragic happening to one of their friends, Spike is trying to comfort Twilight