I watched a song "あの娘シークレット", and there are these lyrics:
僕に初めて 見せるような表情
でもそれは僕に向けてじゃないよ
(Youtube link with timestamp: https://youtu.be/sgdPlDG1-8k?t=106)
My question: I have never seen a じゃない right after a te-form. I get the meaning of the lyrics, but the grammar gives me difficulty here. Is it not normal to write "向けてない" here instead?