Chelsea: As he was going out with two of the girls already, he thought that he might as well go the whole hog and ask out Parvati as well. "I'd love to go out with you Harry" she cried when he asked, and her arms flew around his neck.

Chelsea: Harry doesn't decide which girl he like either Parvati, Luna, Hermonie, or Ginny and Hermonie. So Parvati should be his girlfriend because she has a crush on Harry!! So HArry ask Parvati if she want to go out and she says ok!!!!

Chelsea: Harry doesn't decide which girl he like either Parvati, Luna, Hermonie, or Ginny. then suddenly Harry realizes that Ginny is Ron's sister so he couldn't date his best friend sister then Luna was maybe not right for him so he had to chose between Parvati or hermonie and decides that hermonie is his friend and wouldn't be right to date his friend plus there seem to be something going on between Ron and Hermonie. So Parvati should be his girlfriend because she has a crush on Harry!! So HArry ask Parvati if she want to go out and she says ok!!!!