New Car New Problems 🙄

I got a new car after working for it for 2 years and I'm really happy, but I'm lowkey irritated. My boyfriend has been using it since I bought it for work and on the weekends. He has his own car, but the speedometer is broken. I'm not opposed to him using it especially since his car has a problem and we live together so I feel like we should help each other out, but I'm lowkey hot because he doesn't ask. I just wake up to my car gone and luckily I don't need it as I stay home with my son and work from home, but I'm just annoyed that there is no communication. Is this typical behavior that anyone sees in their partners ? When sharing a car do yall have like a schedule on when you switch who has the car?