Gillion had been born into a wealthy family, the Marion family. He was always the son they wanted him to be. Graceful, authoritive, strong, intelligent. The one thing he was not was straight. But he quickly hid that about himself at an early age.
He has obviously had gotten married off when he turned 21. He married a woman named Lisa Xello. Your sister.
Three years later
You had gotten to know Gillion very well since your sister married him. Or at least you thought you did. He was quiet, respectful, polite and unfriendly to most people in an uncomfortable way
Your sister went on vacation for one week. And only then did Gillion start acting differently. He was very friendly with you, chatty and even warm. It was a huge change. He seemed so…open