HOW DID I BLUNDER

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RealTactics960
In a game of chess that I played, my sister, as white, played 1. g4. I played 1. d5, and she played 2. f4, followed by me playing 2. e5, she played 3. fxe5, and I played 3. Qh4#. And stockfish says I played a blunder. I thought it meant e5 was a blunder, but it wasn’t. WHERE IS THE BLUNDER?
Here’s the game:
[Event "Online Game"]
[Site "Chess.com iPhone"]
[Date "2024.01.08"]
[Round "?"]
[White "raychelhull"]
[Black "BenjaminLHull"]
[Result "0-1"]
[FEN "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1"]
[WhiteElo "457"]
[BlackElo "794"]
[Termination "BenjaminLHull won by checkmate"]

1.g4 d5 2.f4 e5 3.fxe5 Qh4# {0-1}
airwaves228
🔥
RealTactics960

I think I figured it out. my sister played a blunder, and I misread that as me playing a blunder