Why do you think we can answer this for you? Which of us could have even a mild amount of genuine knowledge of the situation? All we have here is one anecdote told from your perspective. You need to understand what you want, and you also need to understand things from her perspective. You're the only person in a position to do this, not us, not your mom, no one but you.
You talk to her about your feelings, not in a whiney lonely puppy way, but as a human being, tell her how you feel, ask her how she feels, try to understand where she's coming from and try your best to communicate where you're coming from. That takes courage, but until you do it, you can't really know what you should do. Only then should you make a decision, not us.