Need help with ex....people need to be willing to read long story.?

well we met on facebook and we started texting eachother and talked on phone one night, at school one day he walked by and like sorta grabbed my belly and then hugged me last period and that weekend i asked him out. he made me feel great. he promised me all this stuff [ we'll be together forever, i'll never cheat on you, your the one for me, i won't make you do stuff you don't wanna do, etc]. i shared my first kiss with him. met his parents. we dated for a month.we dated over valentiens and he gave me a big sparkly heart thing and 4 stuffed animals. he tryed to make me have . he pushed me onto the bed and sat on top of me [he is way stronger than me] he tried to put his hand up my shirt but i blocked it. luckily, a few minutes later his parents came home, We went to this dance and he ditched me to go flirt with other girls like he usually did and i cried :/. he asked me to slow dance with him and the whole minute we danced he was talking to other girls and ditched me for this other chick. i went into the bathroom and cried and my friends and chicks i didnt even know came in and asked if i was okay and then we heard him yell my name. i waited for him to go and i went outside the school and called my gma to come get me. he came outside after me and hugged me and wouldnt let me go and he asked for a kiss and i refused and all he could say was sorry and what did i do? and then his two older cousins ran out toward him so0o i walked off to the opposite end of the building and he and his cousins were talking bad about me. when my gma got there i got in and slouched down to hide since we had to drive past him and my gma said he waved to him. that night we made up. We dated for a month and then he broke up with me. i went to hang with my bestest buddie who happens to be a gay guy that my ex hates. not even 10 minutes later my ex starts texting me and apologizeing. eventually my ex rode his bike up to apologize but i told him i'd think about it and he left. that night i called him and we got back togethether. we dated for about another week and then he broke up with me to kiss this pregnant chick and then expected me to go back out with him. he thought he had the right to kiss her since he lost his virginity to her, she was prego, and they had a history together. We got back together the next day after skewl, in 3rd period he kept walking back and forth and stopped infront of me and talked to my friends by me, and then the next day he broke up with me again for this other chick who claims to me and my buddie that she doesn't like my ex but she is leading my ex on even though she has a boyfriend. my other friend said she saw them disapear behind the school together the next day. my guy buddie says she is nice and wont do that. and my ex thinks i was lieing about her not liking him because she told him i was lieing and stuff.the next day [we have a day, b day schedule and i have 3rd period with him. we go to half of 3rd period lunch and back to 3rd period for rest of time(1hour 30 minutes in each cl, 4 periods a day)] the first part of cl he gave me a note saying "listen here, i dont care if youg ive me bad looks do what you want i dont care!!!!!" with a cheesy smiley face. and then another one say i was a slut,*****,etc and i was rated 4 and this other chick a 10 and bla bla. i left school at lunch because he was making me feel bad. that night my gay buddie came over and he started calling me a ,slut,immature,*****, etc on facebook and then called and yelled at me. i told my moshur and i missed school the next day and then next she dragged me to the counsler. they sent me to cl and talked to her first and later called me down. i explained the whole thing and gave them the notes. they said its just gonna get worse till he wakes up and realizes im not going anywhere. they said if he gives me any notes don't read them and give them to them. the counsler read me a child book about stress and then sent me to cl. during 3rd period i told the teacher so0o she could keep him away [WHICH SHE DIDNT!!!!!!!] and he walked in and she talked to him and he walks by and goes "good job lexie" in this mean voice. [his seat is across from me behind me] then i went infront of room on floor like usual [teacher lets us do w.e] and he stares at me and walked infront of me. he set his stuff by me and laid down and then i went to other side of my friend an he got up and walked over to me and goes "i was gonna call you last nite and say we could be friends but no you had to go and ruin it" and then during lunch he left me alone and then in the cl room he called me over so0o i went over and he is like "do you wanna be friends" i told him no and he goes "why" and i go you know why and walked off. and then he sat in desk right infornt of me and started talking about me and he wrote me a note saying "why did you changed your #? haha" and i told him because of him and he goes "i bet you deleted me off your facebook to huh?" a