why o why

well guys i have not been on for a while i just wanted to post up the reason why and ask why is life so shit sometimes?

well just before xmas i got with a girl she was an ex girlfriend that i went out with for nearly 2 yrs but it wasnt working and we stayed friends for a further 2 yrs and we became soul m8's or so i thought.basicly everything was great so i took another 6 month contract out on the place where i live so me and her could make a life together.(Bare in mind i have already been married once and got my heart shattered so for 5 yrs i kept everyone at bay).So things where going great she wanted a puppy so she got a puppy infact she got everything she wanted i never stopped her from doing what she wanted but about a week ago i noticed a diffrence she wouldnt kiss me touch me give me hugs no more so i asked the question.She replied i am sorry but i just dont feel the same no more.I was like what the hell it has only been 4 weeks.She has since moved back to her moms house and i am now packing all my stuff up from the house due to the fact that i carnt afford to stay here on my own.All i want to know is why do all the good guys finish last.