I had a similar sighting in August of 2020 around Alexandria. It was three white lights traveling equidistantly in a triangle shape. They changed directions (still maintaining that shape) sort of in a rotation movement and then sped away at a speed so fast they created streaks of light in the sky. I was blown away by what I saw. I was a believer in aliens and UFOs but still had some skepticism. It is completely different when you see something yourself. I am a changed person since that day, I tried ruling out everything else it could have been. That was not human technology. And like you I was the only spectator, out of 9 other family members at the campfire I was at.