Seamus was having the same feeling. It suddenly got harder to breathe and when he tried to say something, nothing came out. Even when he tried to swallow to keep his throat from getting dry, it was almost like he was swallowing sand.
"Aye?" he finally choked out. He really wanted to suddenly tackle him, but he was so afraid of making that initial step and possibly screwing up 12 years of friendship if Dean didn't feel the same way anymore.