Gemini randomly started talking to me in my voice for a moment 😭

I asked why did it just change voices and denied ever doing so and then denied having the ability to imitate me. Number 1 why would it do that in the first place and number 2 why would it deny having the ability to even if it was a glitch 🧐. Anyone else have this happen to them? Creepy asf 😭😭😭