Sexual Frustrations with Girlfriend! Need Help Please!?

ok here it goes. My girlfriend and I have been going out "officially" for 3 months. We go to the same College. Im 20 shes 19. ok i got myself in trouble. at first i didn't know she was a virgin and never kissed a boy before. She told me after i had given her, her first kiss. I didn't think much of it at the time and was like oh well, i was a late bloomer too. Soo as you can see our relationship has started off very slow sexually. BTW she has told she wants to wait till marriage...i said ok i can try and do that (cuz i really do care for her) anyways time has passed and we have slowly moved up to doing oral a couple times...and she let me see her breasts....once....but i haven't told you that we are currently in a long distance relationship because i have came home for the summer which is 6 hours away. she has came to visit for a week, and thats where we made the most strides in our sexual relationship, but now she is back home. Another thing i have left out, she is really a closet freak ready to be unleashed but her mental blocks keep her from doing so, she says she feels "dirty". I said i understand. Yet another lose for me :( ok so before she came to visit we would skype and every now and then she would show off her body (still in underwear, but i didnt need anything else) and she would help get me off....but now she is back home and has not done that for me once. She says she wants to and gets cute and bashful and then changes her mind. Basically what im trying to say is I have needs that i would like to be met...i don't ask for much, and anytime she asks me to do something for her i do it...i said i would hold off on sex...but is it too much for me to ask for her to have some fun with me over skype of all things?? Im sorry i know im all over the place and you are probably confused....basically i am sexually frustrated, i want to have sex but know thats not going to happen...so does that make me a savage when i ask her to do minor things like that to ease some of my frustrations?? theres so much more to this than i can write so i will leave it at that. Thanks to who ever takes the time to read this and answer!