Some peole have a difficult time with getting in touch with their feelings. This is something that only they can do. I read a book called "Hiding From Love" a couple of years ago. From that book I could see the ways I was sabatoging my own happiness and running away from love rather than to it. It really helped me to see the dificulty I had in receiving love.

I think that if you give your g/f time, patience, show yourself to be reasonably trustworthy ( no one is perfect!!! that's why I said reasonably) she may respond with the love you desire from her.
The best of wishes to you....
Sweetngentle

"It's never too late to be what you might have been". George Eliot