I have been with my gf for almost two years. Several months ago I have started feeling like we are just too different on many levels. There was a time early on that I really thought we could be together long term. As more time passes I keep seeing more and more signs that we are really not compatable. I know she can tell I have not been myself lately. I know I need to break it off but I hate the thought of hurting her. I cannot keep from thinking if we stay together things will just get worse. I'm already at the place where I dread spending time together. Any advice is appreciated...