Oliver knows Felicity well enough to realize that she's trying her best to be very calm even though something is up but he doesn't want to jump to conclusions. It's not exactly the best idea to run roughshod over all the progress they've made over the past several weeks by leaping straight to paranoia so he forces himself to be calm when he pushed open the door and went to meet her in the dappled sunshine.

It's a little cooler than it was when they'd first arrived, though not by much, and he's still comfortable in the scrubs he'd gotten when he showed up. "Yeah? What's going on?"