The conclusion of Arrow Season 1 will have a lot to do with Oliver and Tommy. The former is in the background of this scene.
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The relationship between Oliver and Tommy will never be the same. That much is for sure.
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Before the shipwreck, Tommy was Oliver's best friend in "Arrow".
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Colin Donnell plays Tommy Merlyn in "Arrow" on The CW.
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Arrow Quotes

There are people in this world who deal only in extremes. It's naive to think that anything less than extreme measures will stop them.

Amanda

Laurel: Helena, you don't have to do this.
Helena: Yes, I do. Because once you let the darkness inside, it never comes out.