Raphael was silent, if he did it means he cheated on his wife on purpose. He didn't know if he would be willing to kiss another woman when he was awake? However, Ivanka had her first intimate interaction with Raphael. Worse, Raphael didn't notice when he did it.
He couldn't pretend it never happened. Ivanka was a lady, and Raphael knew that she wasn't a woman used to touching men. Ivanka was clumsy, nervous and doubtful. Her body language now reminded him of Valerie. He knew the expression of a girl when she first lost her innocence.
"Would you have the heart to let me reminisce about my first kiss with someone who didn't think about me at all when he did? It makes me feel stupid and pitiful," Ivanka showed a sad expression, Raphael was sure that her tears were about to spill at this point. But the girl still said it in a haughty and commanding tone.
"I can't do it," Raphael shook his head regretfully.