even though I saidA casual way to express frustration that something happened despite what was said, often translated as “I told you…” or “even though I told you…”. The quoted content comes before って言ったのに. Related forms include っていうのに and って言ったのにね.
JA: 危ないから触らないでって言ったのに！
EN: I told you not to touch it because it’s dangerous!