That is what I thought. I didn't get the impression that she liked Cloud for who he was. It was more like she was dating the Zack part that was in Cloud and for her it was probably like she had Zack back again.Many people have said that her initial attraction to Cloud comes from his extreme resemblance to Zack, a notion that I very much agree with. Throughout nearly the entire time that Aeris spends with Cloud, he is still bearing Zack's memories and old uniform as his own.
I still think on some level though that she did love Cloud more towards the end when Cloud's personality started coming out, but there is really know way to actually know.