in maths class, I was sitting next to him and we were flirting a little bit and he kept tickling my knee and I we like "noo stop, I hate when people touch my knee" and he stopped. the teacher stopped us from working and he touched my knee again and I said"stop" so he stroked my lower thigh and gradually worked his way up, I didn't think anything was wrong with it but the class was silent and he put his hand all the way up my skirt and just brushed my thing with his fingers and I just looked at him but didn't say anything because awks and the class was silent. but as we were walking out of class he grabbed my bum😑 is this bad?