Love sucks

Well.. heres how it all started, i met this girl in high school about 5 years back, and we started dating, continued out relationship into college, and i thought it was time to tell my parents about her and get her involed in the family, so i tell my parents and they were so happy about it, totally supported me. Me and my girl always fighted about small things and most of out fights start from her denial of admitting something she did wrong. She NEVER admits her mistakes, shes always in denial, and thats what really pissed me off. I live in toronto ,canada . Then she moved off to vancouver, so we talked about having a long distance relationship and promised to support each other in every way. It was going fine until i went into her facebook acount and read one of her msgs to this guy, where she told him how hot he was and how she likes him, im a emotional guy so i started cryin. i called her and asked her wtf was going on, she started telling me that it wasnt her fault and he was only a friend and i shouldn react so much etc etc. i wanted to keep this relationship going so told her its k. after that , her brothers wedding was coming up, and i was in the middle of my semester, i sold my iphone and some other stuff, and went to see her and attend her bros wedding. it was all goin great, until we started having our little fights again. Out of nowhere shes like to me, i was never gonna be with you in the future anyways, and ill come visit you with my new man, that killed me inside, cried my heart out. She didn care, she wasnt a bitch or anything, but she just didn know what she was saying or how hurtful it was. All i wanted her to say was sorry and admit her msitake, its been 3 days now, and ive herd nothin from her, her phones turned off, and every msg i sent her on facebook i end up gettin a rude reply, my friends told me to move on , buh i really love her, and i just want her to say sorry. :[ what should i do , i dont know