need some help please

Hello! My family recently got into a large fight and my stepmother, being a horrible person, somehow brought up what she called “the issue”. I never knew about this or had any idea what she was talking about. Apparently “the issue” involves a black man that would babysit me when i was very young and still lived with my birth mother. Everyone in my family is 100% certain that i was molested/sexually assaulted around the age of 3. I have no memory of this whatsoever, but he is one of the few people that i do remember from being that young. Does anyone have any insight about this or history? I’ve been racking my brain and i really can not remember, but i’m not sure if i just blocked it out or was too young to understand? It’s really been messing with me recently.

edit: sorry about the whole “black man” thing. i didn’t mean it like that, and i didn’t explain things from when i was young. i am a white female and when i was young and lived with my mother i was basically living from trap house to trap house in a predominantly black neighborhood. i don’t really remember anyone from being that young except for 1. My mother, 2. One of the disgusting pieces of white garbage that my mother dated to get drugs from and 3. This one black man. Living in a predominantly black neighborhood, everyone i knew growing up was of color. but only this one man sticks out.