Instead, Tommy is mad at Oliver for no real reason. He claims that he's mad that Oliver thought he might have been dealing drugs, but Oliver never really said that. He's also mad that Oliver says he would have coughed up the bribe himself. But that's Oliver's job! He's the money behind the club and Tommy's in charge of running it. When he runs across unexpected expenses like, "I have to bribe a zoning commissioner to hide your secret lair," he should go to Oliver for cash. They have an angry scene about how they both used to be bad guys but they changed. Tommy didn't tell him about the bribe because Oliver goes around killing people who break the law. He thought Oliver would kill him for breaking the law to protect Oliver? Tommy says, "Truthfully I have no idea what the hell you would do. You are a complete mystery to me. I've got no idea how you find it so easy to kill people. The next time that you decide to think the worst of me, imagine what I now think of you." Right on, Tommy. It's nice to see someone on the show has a problem with how much murdering the hero gets up to.
Having said that, I don't understand how all that stuff got in the Arrowlair. There were several pallets of bottles there, so Tommy had to break out some heavy machinery or ask the warehouse crew to do it. Did he hide the Arrowlair stuff himself? Where's Felicity's ridiculous chair? And the arrow-making facility with magic herb chemistry lab? And the pull-up stations?
Diggle asks, "What's his problem?" Oliver snaps back, "What's yours?" He's mad that Diggle isn't at his beck and call. Specifically, Diggle should have sprinted to his side at the aquarium. He prioritizes vertigo over Deadshot for the moment, even though Deadshot is definitely a bigger problem in terms of deaths. Oliver is mad that Diggle would pursue a personal vendetta. Diggle accurately points out that Oliver is, in fact, all about personal vendettas. He only cared about vertigo because it wrecked his sister's car and caused inconvenience for his club.
Felicity comes into the Arrowlair (currently the ArrowStorageUnit) and asks what's going on. Oliver shrugs that it's a long story. So she attaches her tablet to the one Ethernet cable that's still connected. She doesn't have access to her usual giant four-screen setup, but she has her product-placed tablet computer, which is basically the same thing. She looks at the autopsy report for Aquarium Guy: he died of severe anaphylaxis. He was allergic to an antipsychotic called Chlorpromazine. And Veronica Sparks also died of that. That antipsychotic was in the new vertigo capsules. So maybe the Count is still in the hospital! Because that's where antipsychotic drugs get made, right? And maybe he faked his escape the same way he faked being insane! There are a lot of crazy assumptions being made here, so I'm glad that some of them are wrong.