What is it, Why?!!!!!!!!tHE PROBLEMOF MY EVRYDAY LIFE

oK my name is Sherry, i met this gurl about a year ago At first is was merly just friends bc she had a girlfriend but after a while we started getting closer and closer. Well what ends up happening is that we start messing around behind her girlfriends back. I felt that i should feel bad for doing that but i knew that no one is ever just gonna give me what i want I have to take it. W e have been doing this for about 6 months now. It has came to the point that im getting really emotioinal about her. I like her so much. The problem----She still is with her girl friend. She is terrified that if we dont work out she wont have anyone to go back to. She tells me that she has no love or feeling for her girlfriend and that every time she is with her she thinks of me and wants to be with me. Her girlfriend isnt stupid she knows what we are doing. I told her that if ahe doesnt want to be with her girlfriend and wants to be with me Why isnt she. She always so concerned in not hurting her girlfriend. I think that really whats going on is that she stills loves her. I try to stop thinking of her or why she just wont be with me now instead of me waiting. The question always runs through my head Why? IWANT HER