Advice Please

Hello love muffins, I'm in a little crisis and just want to know what everyone thought and see who can offer a little advice on my situation.

Ok I have been dating this girl for the past 6 months, we have traveled together I have met her family (as a friend because the family doesn't know she is dating a female) We have had our ups and down and have been through a lot together in this short time. She is 21 and will be 22 this month and when we got together she believed I was 28 years old. One of her closest friends would say to her that she doesn't know why I'm with her because I'm older and established and the girl is young and immature but I feel no one really understands the connection and love her and I share. Ok the point, She came by this weekend to bring me an early bday gift and to see me. She spent Friday and most of Saturday with me then went to hang out with some friends in particular the one who doesnt think we should be together. The rest of the night my gf didn't call or text me which was troubling then the next morning she called crying and asking can i meet her down stairs. I did and she goes "how old are you?" and I go how old did I tell you I was. I told her I was 28 going on 29 when in fact i'm 33 going on 34. The friend who doesnt approve of us told her i was lying about my age. I always wanted to tell her my real age but I was scared of losing her which it appears that I did. She then goes do you have HIV or have you killed anybody, what else are you lying about. I know she was hurt by the way she found out. She cried and asked me why I lied to her and took her things from my apartment and left. She drove back home the next day and havent spoken to me since, this was Sunday. I wrote and sent her a heart felt letter explaining why I lied and telling her how much I love her but so far no response. She did text me to tell me last night that her sister has my sweater but after that nothing. i even wrote a text saying that sorry doesnt express my true feelings. I found out today that the letter I wrote pouring my heart out she forwarded it to the friend who told her about my age and in the subject area wrote "crazy right" which hurt.

I dont know what to do now. Im madly in love with this girl and I feel bad for lying. I know she is hurt and i want to give her time but I fear that this is really it. What do you think I should do or what is she feeling at the moment? i spent my day crying sigh.