Should I Do It Or Not?

Am in a confused state of mind not knowing the one to follow or do. I have dated my girl friend for over 2 years now as a virgin. I love her down to earth and she is an example of a good girl and all I want as a girl friend and probably a wife. I plan not to have sex with her till we get married, she just got admission while I will soon be through with my masters. We have been loving each other like Romeo and Juliet and for the fact that I have loved her this long without having sex with her has really proved to her that I really love her.

The feelings are becoming too much, she wants it and I also want it but the problem is that I will soon leave and stop being around and close to her and am scared. We all know how strong the urge is always on any person who just loses her virginity, she will always want and feel like having sex often and she has even confided in me that there is possibility that she may fall and have sex with someone if she loses her virginity to me if am not close to her or around her due to the urge. And if I decide not to do it, from the way she feels, there is possibility that she may give out that virginity to someone else when I leave.

The truth is...I want to be the one that will take it and still wish to be the only one that will be doing it afterwards but the situation is...if i do it, there is possibility that she will not withstand the urge since I wont be around any longer which I wont blame her. And if I do not do it, there is also possibility that another person might do it when I leave which am not sure though and which I wont blame her also. The situation here is not lack of trust on my own side because she; herself does not even trust herself.

leave your comments and please be diplomatic.