then this happened because:
Major cause:
First she had a bad luck, i.e. a rapist or a bad guy has been in contact with her in any way in some place or ocasion.
1st Minor cause:
Second she does not respect her self and too much free laughing in an abnormal way with evey one she know and she does not know.
2nd Minor cause:
Walking alone in unsafe places with disregard to what she wears.