how to say....?

leave me alone!
i hate you!
i dont wanna see your face again!!

leave me alone!
watashi no koto hottoite

i hate you!
daikirai!!

i dont wanna see your face again!!
anata no kawa nanka nidoto mitaku naiwa!!

this is something like girlish expreesion to her boyfriend

for I hate you, the "full optioned" answer is "anta no daikirai" or "anta no koto daikirai"?

halloween,

If you want the "full" sentence with all grammatical bits thrown in, it would be (in informal speech):
- Anata ga daikirai.
- Anata no koto ga daikirai.

You can omit the "dai-" part; it adds emphasis on "kirai," which means "hate" "dislike" to begin with.

In everyday speech, often "ga" is omitted.

"anta" is an informal version of "anata" - you, and can sound a bit rough coming from a girl (if used in the context given by "im" earlier). Of course if you are in a quarrel and blurt this out, well, it can come out that way too :)

In informal speech, we would usually say, "Anata (Anta) NANKA daikirai!"