I am engaged to dis guy whom i thought i rly luvd.his possesivness n his mentality is killing me?

i met dis guy thru fb an year bk n v fell in luv.nw im engaged and confused.cos wit tym i relised he was neva happy wit d way i luk.he even told me once to d face hw he neva found me prty.n so many other stuff.i missed so much in ma relationship,things like which a gal wud want to hear frm a guy.once it ended up i had jes frenly contact wit anothr guy for whom i had no feeling.we were jes frens but i neva told ma finace abt dis cos he is very possesive.n one day i get cought n since den he had been doubting me n life is lyk hell since den.ma fiance is very short tempered.most of d tyms our fights end up in he yelling at me in filth.ours is a long distance relationship.ma parents happily got us engaged but nw after seeing all d pain i go thru dey want me to breakup.he doesnt let me even check ma mails or do nethng over d net,doesnt let me go out ne whr.n doesnt rly care wat i do but i hv to tlk to him wen eva he cls ifnt he gets wild.i find him selfish n nt at all understanind.i hv lost all my frens cos he doesnt let me be in contact wit dem.but let me add he does say he luvs me n sumtym i feel dat he does but honestly i hv cried alot in dis relationship more dan d days i hv smiled.im confused.even ma parents r unhappy plus i am scared dat i will jes keep beliving in luv n end up marryng him n regrettng later.shud i jes breakup or does he rly luv me n is he acting dis way cos of d frustation of long distance.he also has other probs like a huge loan he owes n hw he is still un employed n so many other issues.is it jus stress y he is lyk dis wit me.?am i to risk ma lyf marryng him or shud i jes listen to ma parents n brkup.?pls help