Ex Factor Guide – PDF book download, by Brad Browning. Feel free to read The Ex Factor Guide now! If you want to know how to make your ex miss you, it probably means that you still want to get back together with him. Sounds simple, does not it? If you could work out how to make him miss you after a breakup, the feeling of being single will be intense enough to make him try to get you back together. The truth of the matter, sadly, is that it is going to take a lot more than simply learning how to make you miss an ex. It needs more than just him feeling depressed that you are not together anymore if you ever want to learn how to make your ex want you back and hold him for good.