Sometimes people think they know you. They know a few facts about you, and they piece you together in a way that makes sense to them. And if you don’t know yourself very well, you might even believe that they are right. But the truth is, that isn’t you. That isn’t you at all.
Be with her because you actually want to be with her, because you actually see a potential future with her, not because you are used to being with her, not because you’re scared of the thought that being without them will ruin you. The point of being in a relationship is to enjoy each other’s company, is to be there to support each other when they need it most. No one person, defines who you are. They only compliment you.