If you are not interested in a relationship, it is only fair to say so. If you want commitment, do not sit on your hands and let someone else set the schedule. Set boundaries without demanding exclusivity on the third date. The best rule is simple: don’t be a douche. If you do not want someone to treat you that way, do not behave that way yourself. Respect means allowing people to make informed choices about their own hearts. No one should have to wait indefinitely for clarity.