Katherine makes her presence felt again on the episode "Memory Lane." She's seen here with Damon.
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We know what many Vampire Diaries fans are thinking right now: KISS! Will Delena ever become a reality?
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Damon and Elena are seen here in a scene from the episode "Bad Moon Rising." It's the third episode of season two.
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This is Elena, not Katherine. You can tell by her outfit and her hairstyle.
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Damon has a look of shock on his face in this scene from "Brave New World." It's the second episode of the second season.
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This is a scene from the 9/16/10 episode of The Vampire Diaries. It's titled "Brave New World."
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Brothers that cross their arms together stay together. Isn't that right, Damon and Stefan?
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Damon and Stefan will likely never get along perfectly well. But their relationship has evolved a lot over the course of The Vampire Diaries.
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Vampire Diaries Quotes

Elena: I wanna remember.
Damon: Well you're a day late and a dollar short honey.
Elena: I mean I wanna try. Knowing there is this whole piece of my life missing it's driving me crazy, ok? So I have to at least try to get it back.

Damon: You know what they are? Children. Like lighting a candle's going to make everything OK, or even saying a prayer. Or pretending Elena's not going to end up just like the rest of us murdering vampires. Stupid, delusional, exasperating little children. And I know what you're going to say: 'It makes them feel better, Damon.' So what? For how long? A minute, a day? What difference does it make? Because in the end, when you lose somebody, every candle, every prayer is not going to make up for the fact that the only thing you have left is hole in your life where that somebody that you cared about used to be. And a rock with a birthday carved into it that I'm pretty sure is wrong. So thanks, friend. Thanks for leaving me here to babysit. Because I should be long gone by now. I didn't get the girl, remember? I'm just stuck here fighting my brother and taking care of the kids. You owe me big.
Alaric: I miss you too, buddy.