Dean gave Seamus a look, chest heaving slightly. His hands were curled into fists and he was digging his nails into the skin of his palms to keep from saying or doing anything particularly stupid. It wasn't likely that they were going to have many good things to say to one another, but this needed to be done, to be fucking dealt with. He was sick of leaving everything to be fixed later. It never got fixed!
"I expect you to be my best friend Seamus. I expect you to know that even if it doesn't sound like I'm telling you the truth, I am! What I'm doing is vital. You're all fucking under that madman's spell...or potion, I should say." Yeah, he knew he might not be supposed to mention that, but he would. They had to goddamn know. "So of course everything I say is going to sound like hogwash...but I keep wanting you to believe me!"
He growled slightly. He hadn't been this angry in...ever, probably. Nothing had gotten under his skin quite as much. Not even when his sister stole his art supplies and broke them. "We keep avoiding every goddamned argument we start, and I'm sick of it. Sick to motherfucking death of it." His breathing picked up a little and he closed his eyes. "It is a matter of you trusting me. There was a time when you believed in everything I said. You believed that I was right no matter the circumstance...unless I really was shit wrong...and I told you I was wrong then, but I'm not wrong this time, Seamus."
He gave him a pointed look. "You know why you don't want to believe me, Seamus? Why we don't agree on anything? Because they are fucking controlling you. I've heard that from multiple people." And you're in danger of getting killed because you were in the DA. That was the part that scared him most. "Not that you'll fucking believe me, though. I must have suddenly gotten a lot better at lying."