According to studies, of all the zodiac signs, Pisces has the most difficulty getting over an ex. Yes, 88 percent of Pisceans admit to missing their ex. And 91 percent admit to tracking their ex-partner on social media. Pisceans are known for being very sensitive and having many feelings. They are also known for not moving on from a relationship quickly. There are two schools of thought on how to explain this phenomenon: one is that they are waiting for their other half to change first; the other is that they are still looking for that "one true thing" with no intention of settling for anything else. Either way, it seems like a painful process for all involved.