How long until you decide this relationship isn't working out, that maybe you'll be better off on your own? Giving up on hopes, dreams, phantasies and life projects is a hurting process. Do you decide to stay, because you'd rather not be alone, because it seems easier, day in day out. When do you feed your need for a real love and relationship? One that will satisfy you, in every (or most aspect), one where you'll be able to bloom and evolve peacefully. How much time will you waste on that decision? The longer you'll stay in this limbo, the longer it will take you to heal. Being heartbroken, at any age, will hurt. But so will the common misery.