As a Sagittarius, you're pretty accommodating. That's because you were born under a mutable sign, and mutable signs are flexible. However, even you will be pushed past your limit when Mars forms a square to Saturn on August 16th. You've done everything you could to try to make a relationship or association succeed, and now it's time to ask this person if they really want to be with you. Chances are the answer will be what you suspected all along, but instead of feeling bad, you'll be relieved. That's because it's exhausting trying to make things work with someone who doesn't want to be there.