..Then you're possibly just a convenient lay, at least as you're describing it.... And if ya don't want to just be getting laid, break it off and be yourself and find someone who will love you as you are.
Not to say that breaking things off with someone you care about is easy, even if they allegedly don't care for you. Still. Life is short. Being in a one sided anything isn't sounding like what you're looking for. Very short post though, so any suggestions should be taken with a grain of salt as it were.