My girlfriend is 18 and i am 19 she has over the past 2 and a half years cheated on me on several occasions i live in port douglas queensland australia she moved six weeks early back to maryborough the opposite end of queensland and the second night she was back cheated on me again i broke down due to depression and anxiety now she always has excuses why she cant talk but still says i luv and miss you soooo much and says "trust me i wont cheat on you again" i know of her history so im always paranoid but at the same time people can change so i am stuck i love her to bits and after all we have been through i think it is unfair she does this she is the only woman i have had sex with i honestly have only touched 2 other girls boobs at parties but went no further why does she do this why even though ive turned to god now do i still hurt and hate the things she does i am really stuck and need an honest opinion so PLEASE HELP ME