Should i wait for her???

my gurl n i of 2yrs just broke up and 2 days later she has nother man they been together 10 days n already say i love u to each other now i kno she cant really love hm especialy wen she stil says she misses n loves me.my mind says move on, but my heart says neve giv up shes ur one n only.i tried to go hang with another gurl but couldnt put any moves down cuz all i can thnk of is my ex i love her with all my hear and dnt want anyone else.a normal person would see shes havn cuddlin kissn n layn with another man and easily be ready to move on right?i kno she does all this cuz shes told me.in our past shes cheated a few times n i cheated once but we still stuck it out bcuz of our strong bond im pretty sure we have.i feel that shes makig a mistake.i feel like i should not giveup waitfor her to realize im her man. but wat if she nvr does?wat if she slowly 4gets me while i thnk of her everyday waitin i wana wait 4 her but theres tha fear of her not comn back do i wait 4 my luv or move on