My EX BESTFRiEND as of now is dating my ex.?

He was my longest relationship we barely broke off completely last week. She like him and he had a small crush on her. He treated me like I was beautiful which I'm not... And then he tore me apart. Him and her started dating yesterday at night and today I heard that they were going at it hard in the school bus making out and making the seat move and that type of thing everyone saw and questioned me about him. I admit I cried in class silently.... I broke three of my penicils and jabbed them into my skin. I know he never cared because all my friends saw them holding hands and kissing... Just like he did to me... He doesn't go to our school but he rides her bus he goes to centeniel we go to public high we are freshmans he's a junior and she is 14 I'm 15 he's 17 almost 18 in May. I don't know if this is mean or whatnot but I actually didn't feel safe with him sometimes cause he was older and touched me weird. She likes it and I hope I'm not angry but I'm thinking about calling the police on him when he turns 18 so she can't see him. That's how angry I am at them. Everyone thinks I did things with him cause she did.