According to Nancy Ruth Deen, relationship expert and owner of HELLOBreakup, many individuals are caught off guard by breakups because they focus on what they want the relationship to look like rather than what it actually looks like. "This is normal, especially in the early phases of a relationship," adds Deen. "You want to believe that your love can make anyone feel special, and when it comes time to break up, you're devastated when you realize that it isn't true." Blindsided breakups can also occur if one partner decides to leave without warning. Often times, this happens after an argument where one party believes they have resolved their issues in the mind but cannot accept the fact that the other person does not feel the same way. In these cases, the individual leaving feels like they have been cheated out of their chance at happiness. Finally, a blindsided breakup can also occur if one partner finds out that the other is seeing someone else. In this case, the individual being left feels like they are being replaced by someone else who is more attractive or worthy of love. This can be extremely damaging to blindsided breakups because not only has their love been taken from them, but so has any hope for finding happiness with another person. In conclusion, blindsided breakups can occur for many different reasons. Sometimes one partner wants to leave while the other doesn't know how to handle the situation.