Today I got mad at my friend and said: "あなたと私の時間を費やしているよ。". The problem is, I don't know if this… - Feed Post by Hutreb

Today I got mad at my friend and said: "あなたと私の時間を費やしているよ。". The problem is, I don't know if this sentence is grammatically correct or not XD So... is it?