Hopefully your school has something like ours. When there is a problem of any nature between kids, they bring them in with the principal and at least the school counselor, other adults if necessary (ie the playground supervisor). Typically all of the truths can come out that way. You can learn what really happened, and what each kid thought about it. With the experiences your daughter has had, she may have alot more knowledge than the boy involved, so it triggers more fears? If it makes her uncomfortable, he must not do it, the end. They can help him to understand her feelings. I hope they will approach it tha way, and teach some respect for each other. Good luck, it is hard when our kids go through stuff like this.