As someone who has BTDT, switch gyms. It will not get better. Leave now while she is young and you can get her to a different gym. If there are no other gyms, then switch sports. Your kid's mental health isn't worth staying; it won't get better.
Hindsight is 20/20.
If her experience has taught her anything, it has made her learn at an early age that there are some nasty people out there who will use you and tear you down but for every one of those; there are more absolutely wonderful giving people. She's learning to trust her gut...
Didn't Nassar take off girls clothing and didn't he abuse some girls who were wearing shorts? I don't post often but this is the type of stuff that makes me see red-Stop blaming women for child molester's actions.