Help...

Okay. So I have been sending pictures to this guy, but he likes another girl. We would send pictures almost every night and he wanted it to be held a secret. Not only pictures were involved but also him touching me. He would sometimes grab my ass in school, and swiftly grab my breast in a teasing manor. I don't know why I continued to let him go on and on with this. But recently, I accidently let our secret slip in front of my friends, they wanted me to explain everything. One of my friends told him off and now she and another one of my friends hate him. He hasn't talked to me in weeks. Except fr the other day when he sent me a text say 'hi' I sent 'hi' back. He didn't read it until the next day sometime and still hasn't said anything else. What's weird is I really like him. And I feel stupid for letting him do all of that. Let alone let me do that. I don't know what to do now, because I kind of still want our sexual relationship to continue. Even though I know it's bad and such. But I just don't know anymore... Advice? I need help figuring out what to do or something......