sour apple about it put yourself back on that tree and branch out.
come to terms with yourself that they just missed out on a good thing. you were the reward!!! when this happens 'they always come back' now it's up to you how to respond to them when they do. sometimes because we get lonely they show up out the blue and what do we do; we welcome them back almost immediately. what i would do is not treat them how they treated me when they left (no eye for an eye) but to politely inform them even if what you say is a lie that you have someone else 