So after being plied with drinks, he's finally relaxed enough to enjoy the party. "You're an asshole for eloping. You know that, right?"

Then he peer/glares at Pete, sloshing his half drunk drink a bit in the process as he points. "And you're an asshole for just going on with it, too. I miss out on my cousins getting hitched? No one chucked flowers at you? Highly offended. I'm cutting you both out of my will."

And it's all said half slurred and while he's still 'dancing.'