answered:
In the Spanish Dub of Supernatural episode 15x18, when Castiel says “Te amo,” Dean says “Yo a ti.” In other words, the Spanish dub not only confirmed Destiel, but it’s requited.
But it’s weird because the caption says “No hagas esto” (”Don’t do this” like in the English script) but the audio CLEARLY says “Yo a ti, Cas.” So shit is CHAOTIC right now and that’s why Tumblr went down for a solid 10 minutes.