I'm nineteen and my girlfriend was wonderful, we were really in love for ages. But lately i've just been needing space and she was so clingy, we didn't agree on anything, and every single thing she did annoyed me so much, and i had no time for myself, and i was just not getting anything out of the relationship, and i didn't love her any more and for a time i stayed in the relationship, pretended everything was alright. but deep down i knew that it wasn't, and i wasn't happy and i didn't love her, and i wanted a life of my own. i felt like it wasn't fair to her to stay in the relationship pretending that everything was fine, so after a long time, i decided to break up with her. I felt terrible because she's the sweetest girl and never really did anything wrong, and i feel like the worst person in the world because, she has long-term cancer, and she may not have more than five years to live.. should i stay with her? she doesn't really have any one but me..