Junpei doesn't understand how much Yui loves him, although he knows she likes him, Junpei still hasn't got over the betrayal by Yua and as such he doesn't understand his own feelings, he knows that he is comfortable around Yui and her family, Junpei knows that his feelings for Yui are more than just friendship but he hasn't really thought about their relationship, he realises know that he hadn't known enough about Yua when he asked her to go out, and he hadn't understood his own feelings about her. thanks, interesting.