Some people are naturally forgiving and can easily forget. But then there are some who can forgive but can never forget. These are the kind of zodiac signs who always hold a grudge against someone and find it difficult to let go. While your horoscope can provide insight into your personality traits, forgiving someone for wronging you isn’t so easy. And people who have a tendency to never forget how people wronged them are usually the ones difficult to figure out. Here is a list of zodiac signs who always hold a grudge even when they say they forgive you for your mistake.