This was a gamble. Rain knew that if she didn't appear before Alexander as Rain Clayton, it would only confirm his suspicion that Twilight and Rain were the same person. However, that really didn't matter right now because tonight, she had the perfect opportunity to plant all the spy cams and bugs she wanted in the vacant lounge rooms using Alexander as cover.
As a part of her plan, she needed Alexander to be engrossed and interested in her, so she continued to deny that she was Rain Clayton and insisted that she was Diana Jones. Noticing how he had been gulping often despite the frown on his face, Rain kept up her seductive dance to keep him captivated. He looked annoyed at her, sure, and yet he couldn't take his eyes off her either.