Rudy and Rebecca had decided to keep their relationship in a status quo phase and take some time to think about the future. Both of them wanted to do better for others, and that was the problem.
Rebecca would have had no qualms if Rudy wanted to be in an intimate relationship with her despite being warned about that in the diary— only because Rudy wanted to. She was ready to risk any and everything to make Rudy happy.
Rudy, on the other hand, was thinking of Rebecca's well-being. He was selfless when it came to Rebecca, as she was the most important person to him in all the world. He already knew that Rebecca wouldn't oppose the idea of being in an intimate relationship with him.
Still, Rudy wanted Rebecca to decide that for herself and not because Rudy wanted to. He was ready for both positive and negative answers to Rebecca's choice.