I always love when characters just explode with emotions. Especially Dean because he keeps so much inside and when he finally lets it out... gets kinda intense. Dean has so much love to give, omg. Your dialogue, by the way, is amazing. It's so heart-warming. Makes me feel proud of Cas for being honest and true to himself, he's grown so much and developed emotions and feelings all around Dean.
Also, what the hell??? How dare you end a story with "and that's how their story began." OMG
This was so cute. I really did enjoy it, just the emotions you put in were really good. I really like the line you had Cas speak, "don't let me forget that." ugh, heart-strings you are pulling them.