The dumbest thing you can do is tell her "these are my boundaries, respect them or else." Once you do that ALL your cards are on the table and by knowing your hand you are completely screwed. If you want to get with this girl, and like others have said I don't know why when you can clearly do better, you have to take complete control. Write down your boundaries and what the consequence will be if she breaks them. Believe me she is going to break them, she is a boundary buster for sure. You might already have screwed yourself with this one by showing her you are needy and clingy. Your goal is to get her to chase you, right now you are doing the chasing.
From reading your conversation she is likely a cluster B. If you really want to be with her you are going to need balls of steel and extra thick skin. You are going to have to be able to control your emotions and keep them to yourself. Any hint that you are a BETA and she will eat you for lunch. And you also need to be prepared that if can turn it around and show her that you are Alpha, she will most likely see she cannot feed off of you and leave you alone to find easier prey.