How do i get him back!?

I was going out with my bf well now ex for almost 2 months. i gave him my virginity and he said he loved me (he was a virgin 2) nd den he dumpd me he said he wasnt ready for a long relationship (by the way ive lykd dis guy for 2 years!) and he said he would always love me and wanted to give it another go after a while. but i kept on pushn it because he wuldn't tell me the other reasons y he dumpd me. nd i wntd us to go back owt. he finally snappd and said he dumpd me because i whinge nd i put my self dwn nd bcoz ov my scars (he usd 2 tease me wid his mates wen we wea fytn lng storey thea. nd the scars r cut mark scars.) i cant say the full storey but its alot deeper... nd den he said he hated me. so n a week he wnt frm lobing me to hating me. i dnt knw wah 2 do. i love him nd miss hm so bad. all my friends say i can do better then him. should i write him a letter explainin my feelings or sumfng hw bad i miss hm nd stuff? (i hav alreadi tld hm). I dont knw wah to do.