Brother borrowing a car?

Brothers should help and support each other, but everyone's situation and ideas may be different. Your brother may have his own reasons for not being able to lend you the car, perhaps because he has other plans or is concerned about the safety of the vehicle. Even though you're disappointed, that doesn't mean your relationship will suffer greatly. In interpersonal relationships, sometimes there will be some conflicts and different opinions. This is normal. You can communicate with your brother to understand his thoughts and reasons, as well as express your feelings. This helps to enhance mutual understanding and trust.