A sliver of regret slips through as Oliver watches Derek, but he leaves without saying another word. It's too easy to do so, to leave something behind to deal with later -- if at all. But Oliver likes Derek too much to let go of his self-restraint.

Instead, he pulls his phone out and calls Thea as soon as he pushes the door open. When her voicemail comes up, Oliver hangs up and texts Thea instead. Just a quick I'm coming over with no explanation and no checking to see if she's actually home.

He'll wait in the hall all day if he has to.

When he makes it to her building, Oliver takes the stairs two at a time until he hits her floor. The anger has dissipated somewhat on the walk over, only to be replaced with a very familiar frustration that only Thea can bring about.

He knocks, hard. "Thea! It's Ollie."