Mamma’s Boy
Many people rebel against their parents in high school. They sneakily put on makeup in the school bathrooms, listen to music their parents don’t like, and even sneak out to go out with their friends. But this guy was committed to keeping his mother happy, even if he didn’t ask her what she actually thought.

Some people genuinely do have really strict parents, but this guy answered too quickly. Suspiciously quickly. At least he could have tried and asked her to see if she actually would let him go or not. This just makes it sound like an excuse. Or, he could just tell the girl he didn’t want to go to prom with her.