Go see your doctor and tell him that you are falling into a depression. You must have something wrong with you (that hopefully he can treat) that would make you be in an online relationship for 8 months and without ever meeting you're now relying on this guy to make you not feel empty.
Unless you're Indian and the guy on the other end of your keyboard is the guy your parents arranged for you to marry... Why not get off the computer and find someone who you can hold hands with while you talk or actually have sex with instead of rubbing one out to words on a screen... words that are now dwindling.
Have you ever had the opportunity to even see this guys face?
“The willingness to accept responsibility for one’s own life is the source from which self-respect springs.” ~Joan Didion