weird cousin.

I was scrolling and came across a thing abt child protection and stuff. and they mentioned abt pocso. I guess I'm victim of it? I'm not sure if i can say that though. I was kind of groped by a person when I was 13. well he wasnt an adult , ofc that dosent make it any less better ik. but hear me out okay.
there was this cousin brother of mine ,who is like a yr younger than me. so long story short. he insisted on playing cards with me in his room. even my mum told me to go and give him company(actually he had no siblings so for that reason my mum had soft spot for him.) and that's when he started groping my chest. well I could ramble abt this whole day. but that is wt happened.
growing up I just brushed it off a childish mistake from his side. but tbh even to this day that guy is super weird.
no idea if this was a big deal. but lwky I hated feeling uncomfortable even amidst my own family. anyway I'm not really traumatized though, it happened ages ago. but still sometimes I just go into this deep thought on how anyone can be a threat no?.