Most Helpful Guy
I think that you need to try and separate out the fear in order for you to gain clarity. Fear of the unknown is not a good enough reason to stay with someone. If you are simply no longer compatible and you are going nowhere then break up becomes almost inevitable. Sitting there in blind hope of some kind of miracle is a huge leap of faith and is usually naive.
Most Helpful Girl
Why do u have thoughts of breaking up? Is it moreso you feeling this way or something tht he is doing that doesn't suit right with u? You have to be honest with yourself here. And dont choose to stay when you are not happy just because u fear being alone.