How do you know if someone is on the rebound? A person might be considered on the rebound if he or she becomes involved in a serious relationship that shortly follows the ending of a previous one. And if the person was dumped -- especially if they never saw it coming -- it only amplifies feelings of wanting to get with someone new to get their mind off the whole ordeal. If you are dating someone who is rebounding, you may question if he or she is capable of emotional attachment or if you are, instead, simply a substitute for love that was lost. It can be especially hurtful when you sense that the person you're with isn't entirely over their ex. They might bring him or her up in conversations, whether they're mentioning how terrible the ex was or, even worse, comparing you both ("John was so much tidier than you are.") You may also take notice of the fact that they continue to hold on to and revisit photo albums, cards, and gifts that the ex gave them...