Perhaps, but Winterbourne does mention that she is not usually his type--she does not frighten him. Perhaps he is captivated by her beauty?

Yes, I agree. It's because she's a hottie, lol. When they first meet there is a lot of description of her beautiful feminine features.

Also I think Winterbourne was very attracted to how comfortably they could converse when they initially met And his like snowballed from it

I too was baffled by this. I suppose it's a chase to him. Sometimes I got the impression she was rude to him. Maybe it's all a game

Having now finished, I agree that it was all a game. I think she was simply playing hard to get. Because she sent him that last message.

true. and she seemed to be a drama queen, especially on page 409 "Oh I hoped you would make a fuss... I don't care to go now"

i agree that the message she wanted her mother to give Winterbourne shows that she was just playing hard to get.