Confused and dont know what to do???please help!?

ive been with bf for nearly ayear,i love him but the comments he makes hurt me,he controls me,puts me down,i went to the doctors and ive got depression tablets,but i dont know if my bf is making me depressed,i dont want to split wiv him,we split up 6months ago for aweek and i missed him so much,if he loved me he wouldnt say horrible things to me.He knows im very sensitive but he still says things,i havent been sleeping lately,have been dreaming alot,about affairs,not me,bf going and cheating,not just bf tho,all the men in my family,i dream about my dad cheating and my brother in law,i dont know whats going on in my head,i only started taking the tablets today,should i wait for the tablets to work before i chuck bf????im sick of him,but when i think of him being with someone else it tears me apart,grateful for all answers x