talk to her tonight like if it was your first and last time seeing her, u have to accept you might lose it all, or you have the chance to amend your wrongs.
if i were you, i would talk nothing but the truth. whatvr she says you tell her with complete honesty what you think. one do not get pistoff, second let her tell you evrything she thinks. if you love her with all your heart tell her so, that you will always be there and that you honestly deep down learned your lesson. cuz well playing around with emotions isnt cool, especially after what you did. so again, be prepared to be you, and show this girl what she means to you. you got to prove your sorry, and thats not proven in one night. so good luck!