HELP HELP ME PLzplzlplzplplzplz?

I am 13 now a teen & me and my friend Kellie have been friends since kindergarden. We went to school on the bus together last Thursday and Jeremy my ex & her new B/F was beside us and said "I missed you last night!" I asked her what he meant by that & she said well he really likes me & I have to go there every night when his parents are still working and thats till like 11 pm. I said what do yall do & before she could speak he rudely interupted her and said dont you tell her our secret! And she said never mind. I told her its oK for her to tell me because I knew how he was to me he hurt me & molested me. So she said NO! Later that dy when we were walking home I told her to tell me what was wrong, she finally broke down & said that he makes videos of her taking her clothes off & showing herself to him. I was furious with him. She said she had a few videos at ger house. So she showed them to me, They showed everything PLz help me with this!