[Spoilers S3] Clarke's line to Bellamy

I just rewatched Episode 5 (season 3) today. I'm a slacker, I know. That scene between Clarke and Bellamy was so good. And that line Clarke said to Bellamy:

"I'm sorry for leaving...I knew I could...because they had you".

That was a hell of a line. So well acted. And you could just see it pierce Bellamy. Not enough to change his mind, but it got through. And it shows us just how much Clarke has put on her shoulders, trying to save everybody. And it's heartbreaking to think that there is no way for her to truly do it.