Hah! I knew it. This is the only plausible explanation.
He plainly said, "I have a condo there."
She was aghast and almost collapsed. "What!? A condo at least costs a million dollars there. Son, Angel is right. You really got the wrong address."
Although she wondered how could anybody mistake this normal residential area for something even remotely close to theirs. There was a difference akin to heaven and earth. He said, "I don't live there anymore. Now, I live here."
Why!?
She was close to getting a heart attack.
He was silent. He impassively stared at her for a long time.
"I don't know."
Angel blinked her eyes.
What kind of answer is that? Don't people usually know why they move out?
"Is there some repair work going on?"
"No."
"Did your house get burnt by the fire?"
"No."
"Did it get drowned by the water?"
"No."
"Did an earthquake crumble it into pieces?"
"No."