TIFU by assuming people were flashing their brights at me

Over the past couple of weeks, I've noticed people flashing their high-end when im driving home. I just moved to the area in January, and my car has aftermarket headlights, and is an SUV. I thought my regular lights were brighter, and since my car is higher up, its shining in other drivers' faces and they thought it was my brights and were flashing at me to tell me to turn off my highbeams.

the other night, I was driving and there were three oncoming cars on my road, and I was getting annoyed at people flashing their brights at me, so I flashed them back.

so when I got home, I asked my aunt who's lived in the area for 20 plus years when its appropriate to flash your highbeams at another driver.

"Never."

So I explained a bit and she said that the road was bumpy so sometimes it looks like people are flashing you, but its just the lights moving along with the bumps on the road.

I'd like to take this opportunity to apologize to the other drivers for being an annoying asshole, even though they likely won't see this post.

TL;DR ive been flashing other cars for something thats not even their fault.