Why do i feel this way?what can i do?

Im almost 14. i must confess i got fingered by my bf. and my aunt found out and my grandma. idk if they hate him but im not aloud to go anywhere because of her.me and my bf recently broke up cause he lies about changing for me and he trys to act cool and bada** infront of his stupid friends.his mom also got jealous we were texting so she blocked me from texting or calling his phone.i miss him so much, i admit i get jealous when my friends tell me there with him at the basketball court near my house. I cant get him out of my head. just thinking of him and typing this makes my heart beat so fast. why do i feel this way? && i know i made mistakes but how can i convince my aunt and grandma that i am responsible enough to go out on my own like i use to?