Ive been there, I can give some good advice but I think you have to play it right. Let me know what you think of this theory:
1) She is basing and judging you on her SISTERS past boyfriends.. Me saying that: does that sound fair?
Solution: You tell her she isn't giving you a chance at all. Her sister decides who she wants to date and tell her she is already smarter than her sister by learning from her mistakes and that you should choose the guy who won't make the mistakes. THIS GUY IS YOU.
2) Be distant, you focus on you. She isn't really letting you in her life, I personally don't think she is giving you a real chance, it could even come across that she doesn't want people to think she is dating you. NO! Thats not how it is. It should be a PRIVILEGE to date you.
Get that across, that message. For a girl to date a guy like you, its them who are lucky, its not her who decides whether she wants people to see you two together or not.
3) if youre brave, lay it all on the line
Games number 1 rules: To keep the girl, you have to risk loosing her.
Tell her, either have me all or none of me
what you think
