Break up troubles..

Hi i broke up with my boyfriend thats abusive to me... We were together for a year and im in highschool. I love him and i cry everyday its so hard sometimes i beg him back or blow up his phone. Its been a week and hes already started to like another.. There are a bunch of guys asking me out on dates but i only want him. Idk whats wrong with me and what i should do. It hurts so much when he tells me he doesnt care about us anymore that he doesnt care what he does with our memories. :( im so depressed.