when grabbing the screwdriver from the toolbox in the garage, I already painted the headphones pink and got the blue ones back after she didnt like them and now I cant paint the blue headphones and got pink ones already but the game refuses to continue with the pink headphones I got

Thanks for letting me know. 
Some people are facing the same issue and I'm currenlty fixing it. You can exit the game and comeback and it will continue normally as long as you have the pink one.