He sees her interaction with her nephew and knows this is how a normal mother treats their son. At the start, he just feels respect and curiosity for her, but when their business meeting started, he started to develop a friendship with her. And now his feeling is more intense. He doesn't understand what this feeling is called. But he wanted to be with Anu, he wanted to talk with her.
He wanted to make love with her. But he doesn't know if Anu like it or not, he is not someone who will stay in a single relationship for a long time, and is considering Anu's past this is too cruel for her to let her have this type of temporary relationship,
He decided to see how things go tomorrow. And if he can he will try to tell Anu about his feeling.