may be you must learn to calm down a bit. Every person including you would want their space. Put yourself in her shoes and think, just imagine if she was doubting you,not thrusting you,not allowing you to learn anything new etc. You would feel bad right.
N moreover over you also need to focus on your studies,be a nice person to her. Every time you get angry, just pause,take a deep breath, think through the situation and try to calm down.
Remember you would be treated in the same way that you treat others.
Just love her with all your heart and things should go fine.
All the best! stay calm