<human>: Can you provide a brief overview of the text?

Okay so my fiancé and I have been together for a little over 3 years, she doesn't want to have sex til we are married but she won't marry me til 2016 due to a certain date she has to have the wedding on (Our 5 year mark) and I just always feel awful about it because it's her choice and I don't like it and this will sound awful but I expected her to change her mind about the whole thing awhile ago but she's stubborn about it.

She's given me a total of 3 handjobs and 2 blowjobs in our entire relationship and it was amazing, but she regrets it and says she should never have done it because it's not completely pure or whatever. (This is why I thought she would change her mind about premarital sex). In every way we click and are perfect for each other but when it comes to anything sexual it's just depressing. 

I'm not a bad boyfriend either, I would never cheat or anything like that, I am a virgin myself and I know it's weird to want something so badly you've never had. I'd say I have a pretty high sex drive, I obviously have to use my imagination (or porn but she's completely against me watching porn so I have to sneak that) I am now in the Air Force and in Tech School and I have friends all around getting with girls and sleeping with them, and whenever someone finds out I have a fiancé and been with her over 3 years and am a virgin I become the laughing stock of the day.

This whole thing has been depressing me for some time now and I just really don't know what to do, this girl means a lot to me and I don't want to be without her, I'd love to be able to express love with her in sex and just enjoy one another, I wouldn't be selfish about it at all. I just don't know what to say to make her realize that premarital sex isn't a bad thing in our new society, most people do it.
<bot>: Been with my fiancé for 3 years and there is no sex, what to say to make her realize that it's okay for us to take that next step before we get married.