Whats the best way to go?

now ex n i got 2gether 4th of jul 05.. dec 05 she was preg everythin was so good askd her 2 marry me b4 we even knew she was preg. we had everythin.. as time went on she got very quiet bitchy(hormones) n jus didnt wnt anythin 2 do w me. shes young im young 4 a kid. im 21 shes 18. in april 06 we took a break she wntd 1. we got back 2gether she said she didnt wna b w/out me everythin was good again. had our daughter in sept 06 we werent doing 2 good then. new years broke up she "hated" me. keep in mind ive done nothin but put her 1st since we got 2gether. i quit school n my job 2 take c/o the baby cuz shes 2 young n its rly messin w her n i want her 2 b happy. we got back 2gether 2nd week of jan 07 now 4 the past month we've been apart she has a new bf but i think she still loves me deep inside. i dnt kno whats wrong with her she was fine then 1 day shes gone. i luv her 2 death. having a hard time on what 2 do. i still live w her and we say love you on the way out the door?? should i..