Last year was my sophomore year and there was a guy in my class who would try and touch me. At first I thought he was just a guy playing around till he tried so hard to put his hand down my pants that he made me fall of my chair. Everyone thought he was playing around, so I joked with it. This is also around the time when I was going out with my EX, he was the Emo type of guy. He cut smoked weed and tried to fight people. When me and him first went out it was cool and all, till he wanted me to smoke, I really didn't want to but I did at first and I didn't really like it so the next time he ask I said " No, but you can, its Not my thing "
He began to smoke and began to hit me and telling me to do things. We were all alone and he took me to the bathroom and locked the door.
He handed me some, - Smoking stuff - and told me to smoke it. I didn't want to but I was afrade and I did.
I felt so week after that from him, and I dropped his pipe making the top part fall off and some fell out.
He got really mad and push me into a stall, and made me do things to " make it up"
I broke up with him, knowing what he was doing was bad. He got kick out of school for having drugs on him. He said he was going to bring a gun to school and shoot me.
I don't understand why its just now bothering me, it was a little less then a year ago.
Im doing OK in school now I have a boyfriend who doesn't want anything else but me,I have a job, I'm saving for a car. I never told my boyfriend or family about this.

You needed to tell someone "when it happened" and to be honest need to tell your parents about it now. What he did was wrong and criminal.

Thank you. But I've tried but and he'll denie the whole thing

You need to keep telling people until someone listens. Let him deny it most people who do things like this do but are found out over time. You need to speak up for yourself so you can deal with this and go on with your life. It needs to be about you and your healing. I am speaking from experience and wish you the best of luck. It is your choice what you do you have the power to start healing but you need to make the first step.

What happened is that you encountered an abusive bully and sexual abuser. Is he still at your school? His threat should be reported to your school and the police. They may not be able to press charges this long after it happened but when he inevitably do this to another girl, perhaps the fact that they've heard the story before from you will make them take the guy seriously. You should tell your parents the whole story too. It's not uncommon for people who have been sexually abused to have a hard time coming forward right away. You should probably see a counselor to talk through this so it doesn't impact your life and future relationships.