Have you ever met your supposedly Mr. or Mrs. Right at the wrong time? Sure you have! We all have. We've waited long and hard to find that one person that possesses the 80% that we just know we can stretch into 100% but then we're hit with the age old excuse that, 'they're just not ready.' Indecisiveness at it's finest. So we date just to avoid the pain staking reality that the person who we truly want to date is playing around or who is most commonly, just not interested. And that's okay. But what's not okay is never telling the emotionally vested person that you're just not interested in pursuing anything further than a friendship. Why is it so hard for the uninterested party to just say so?
Majority of the time, it can simply be attributed to selfishness. You're satisfying a portion of what they are desiring at that particular moment and because they have more than likely made you aware of the fact that there's no chance of a romantic future together, they'll continue using you until either they get bored, find what they truly want, or YOU leave. That is always an option. It has been said time and time again that if a person wants to be with you, they will. Point blank. Don't try and make excuses for them. When you know that your feelings are involved, don't then create mechanisms to deal with the constant pain of rejection, but eliminate it. That's not saying that you have to be cruel or mean to that person, just make them aware of how you're feeling and express the need to distance yourself from the situation. Under no circumstances should you allow yourself to be continuously hurt in exchange for someone else's pleasure.
In the end, you have to do what's best for you. In the case of a relationship, if someone wants to be with you, they will. If they don't, they won't. There's no mean time in between time. Guard your heart and walk away. You deserve so much more. No your worth.