Prompt: makepatronusesnothorcruxes requested: Oliver gets jealous of Felicity going out on a date. Diggle calls him out on it. :)

If Oliver didn't sit down soon, John was going to shoot him.

"You know, Felicity put a lot of money into this place just to have you walk a trench into the floor."

Oliver glared at him and kept pacing, hands clenching into fists at his side.

"You can't tell me you think that guy was good news, Digg," Oliver said, gritting his teeth.

John sighed. "Oliver, what I do or do not think doesn't matter. Felicity's a big girl who can handle herself. We've made sure of that. And as a hard working woman, who dedicates every spare moment of her time to you, I think she deserves your respect, and trust."

"Oh, I trust her," Oliver said, raising his brow. "It's him I don't trust. Did you see the way he looked at her?"

John sighed. "No, I didn't, because unlike some people, who will remain unnamed, I was not stalking the girl when she left her apartment this evening."

"I wasn't stalking her Digg, I was just making sure she was safe."

"Sounds like stalking to me," John muttered, shaking his head.

"There was something shifty about him. He was looking at her too closely. I didn't appreciate the way he was eyeing her when she turned to get in the car."

"Doubt she'd appreciate hearing you were eyeing her either."

Oliver ignored him. "He was just paying too much attention…"

John had had enough.

"So basically what you're telling me is this guy was staring at her the same way you do whenever she walks in the room."

Oliver stopped short and looked at John like he was crazy. He had to agree, he was crazy. Crazy for sitting here thinking he could reason with an idiot.

"Oliver, do everyone a favor and take Felicity out to dinner tomorrow night. Please?"

"What, you mean like a date?"

"Yes! Oliver! I mean like a date. Felicity is head over heels, and she has been waiting for you to say something, but you have that bow so far up your ass all you can see are arrows!" John stood up suddenly and grabbed his jacket, heading towards the door. He'd had enough. "You like her, she likes you. Get the girl a souffle and let me go back to worrying about my own love life! Carly's been throwing out comments about rings and I have enough to worry about without being your therapist."

"Wait, Carly wants to get married? You never-" John cut him off.

"No, Oliver." He got right up in Oliver's face, 100% done. "You, Felicity. Me, Carly. That's how this is going to work. And if I find out tomorrow that you haven't asked that girl out yet, I will tell Carly and she will reign fire and brimstone and all that's holy down on you. Got it?"

Oliver just nodded, eyes wide.

"Good. I'm leaving."

And he did.