Complex relationships

"That person has arrived in Bailong City? When did it happen?" Hua Yan couldn't help but look at Luo Yushang.
"Just when Xiao Yun arrived in Bailong City." Luo Yushang said.
"Just arrived at Bailong City..." Hua Yan was startled, his expression became complicated, "Sir, what is the relationship between that person and Titus Xiao?"
"Their relationship is very complicated." Luo Yushang said.
"It's complicated?" Hua Yan looked puzzled.
"When Titus Xiao was in Jinling Tiancheng, she...