even though she is

This is the sign of true love. You are in love which may not end up. Now it depends on your beloved how much she loves you. Being presence always in mind is sign of true love. Have you told your beloved about your feeling on her ? You must tell her. She may realise the intensity of love towards her from you. This will help in deepen the realtionship in future resulting in marriage. But only problem is here that this should not be one way, otherwise you will face great depression if she does not give same response as you are giving her. Hope the fire is on from both side.