My spouse and I share a car. When I'm on my bluetooth headphones connected to m phone at home (say, doing the dishes and listening to a podcast), if she drives

My spouse and I share a car. When I'm on my bluetooth headphones connected to m phone at home (say, doing the dishes and listening to a podcast), if she drives in to the car port (which is next to the kitchen), the car kicks my headphones off the blue-tooth connection, and I'm connected to the car instead. It's very annoying.