Can somebody explain what is happening to me and my boyfriend?

About three times in the past 6 months I was lying awake next to my sleeping bf. And I hear this voice. The voice is loud enough to hear but so soft and mumbly that I can't understand what it's saying. I can't tell where it's coming from, sometimes it sounds like it's outside. Sometimes it sounds like it's right beside me It really pisses me off into no end because I feel like it's taunting me.

But that's not the weirdest part. My boyfriend and I are so close in the bed that a piece of paper can't get between us. He will be dead, sound asleep, and every time this voice starts to say something, he will jump. Every single time.

Now I've woken up in the middle of the night, telling my boyfriend that it's just not a coincidence that every time I hear the voice he twitches in some sort of way. I thought he was making the noise somehow at first!

Please let me know if I'm crazy. I can't be that crazy but I put off such bad energy that he jumps every time I hear a voice too.