Sadly, he's right. Most people have never experienced a desire to do a bunch of math. They don't get it. They don't understand the need to concentrate or why o

Sadly, he's right. Most people have never experienced a desire to do a bunch of math. They don't get it. They don't understand the need to concentrate or why one might voluntarily subject oneself to math. It's strange behavior. For some people it is also intellectually threatening; people don't react well to things that could make them feel stupid. She may also be used to having men nearly always willing to chat with her. The fact that he is unwilling is strange and possibly insulting. She is likely an extrovert, and expects it of others. Social interaction is expected. She expects others to enjoy what she herself enjoys; why would you not? Of course people want to chat!