How long is to long to wait to have sex in a relationship?

It's possible that she wants to save her virginity for marriage. Personally, I applaud her for prizing her virginity so highly. My husband and I agreed when we started dating that sex before marriage was wrong, and we waited five years. It was absolutely worth the wait! I would ask her if that's why she doesn't want to have sex with you. And if that's the case, then you can decide whether to ease out of the relationship or go buy a ring. Hope this helps!