I've namechanged for this
Dd is 14 and in year 9. She's friends with a boy in year 10. Last week they went out together.
On Saturday some boys out of her friends year made a rumour up that they had sex. Dd then told me that his girlfriend messaged her saying she knew dd always had a crush on him and told her to stop messaging him and to stay away from him 'or else'.
Would you report this to the school?