Check Yourself,

Rule 1: You are friends. Above and before all else.
Rule 2: Do not make a move. Just because she is being nice to you this is not an invitation to try... AGAIN. Let her make the move and in all other cases, remember Rule 1.
Rule 3: Do not be jealous. Even if you were in a relationship, you do not have the right to be this possessive. Instead, always be strong, courageous and in control. This is the way you look the best.
Rule 4: What you have now is good. There is still time. You and I are not going anywhere, there is time to make this work or to not. Be patient, be happy.