Can't move on!!!

So the thing is My girlfriend was touched inappropriately in her childhood when she was 12 or 13 years old .. by her uncle.. (I can't explain it it is just pathetic) 8 or 9 years ago And she had not shared it with anyone but she shared it with me before 2 or 3 years as we are now in a relationship since 5 years I got a shock and was disheartened after listening it ... Since then this thing has always been in my mind I tried to overcome the thoughts and understand myself that it was wayyy before The person may have changed But last year (mid 2023) that person tried the same thing.. But this time he was unsuccessful as my girlfriend tried to avoid him and she was sleeping with her sister.. (Both the incidents have occurred when she was sleeping) And both the times she woke up.. Then she was small so couldn't understand what's going to happen with her But this time she managed to stay away and avoided it May be she has forgotten about it and living her life as usual ... But i have not moved on.. this thing always comes to my mind over and over .. this is the problem with me I can't forget things.. these things always haunt me ... Every time i see any school girl.. this thing always comes to my mind and i suddenly think this girl also would have faced the thing and i get concerned and again get attacked by these thoughts over and over I can share it to my girlfriend (the victim) but idk she has moved on or not .. if she has moved on it will be bad to make her remember it again by telling her about my thoughts What should i do? I can't live peacefully due to these thoughts....