Aita for wanting my bf (28M) to wait for my mechanic (25F)

My bfs car broke down one day and for two weeks it was fine. I had no problem with driving him around. One unfortunate day my car stopped working and he said “you’ll be a little closer to your job than I am to my job, maybe you should Uber and I’ll use your car. I had been helping him with rent for the past few months because he had been quitting a few jobs due to “no time to himself” despite me telling him I don’t have money to cover the both of us.

I tell him my car isn’t working anymore and I tell him let’s both use Uber for now because my echanic usually fixes my car within 2-3 days and I don’t want to sign a rental for a week knowing he’ll fix it soon. He proceeds to call me stupid then slaps his hand on the table and walks away. What would you think if your so wanted to wait for mechanic to fix itI could never imagine someone that loves me to call me stupid over something so minimal