Am not able to move on...please help?

wen i met dis guy i knew he was d one..he ws d most innocent guy on earth acceptd me wit certain things no guy wld.he evn told his parents tat he wants to marry me.but wen i gt into final yr of coll things startd gettin tough.v didnt meet much.then i found he ws havin affair wit sum married chic.i dumpd him.but cld nvr move on.v gt back 2gthr n he really changed but i nvr got myself 2 beliv him.so i kept on checkin his cel phone.i felt so insultd by wat he did tat i evn strtd tlkin to othr guys b/h his back bt dey wr jus frnds.i nvr cheatd on him.it was fr makin myself feel wantd.he tld me to trust him or break up.i did neither.he saw me wit a frnd n he dumped me.he says i tuk revenge.n wen he startd 2tlk 2 anthr gal i broke em up.now he hates me..i've realizd i ws wrng n tried 2 xplain but he wont listen.if i can frgiv him y cant he frgiv me?i love him n cant frgt him..i told him i ws preg wen he broke up so he thinks m makin it up to get him back but its not so.he thinks m evil n al.